techpack/tubelib_addons1/harvester.lua

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--[[
Tubelib Addons 1
================
Copyright (C) 2017-2019 Joachim Stolberg
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LGPLv2.1+
See LICENSE.txt for more information
harvester.lua
Harvester machine to chop wood, leaves and harvest farming crops and flowers.
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The machine is able to harvest an square area of up to 33x33 blocks (radius = 16).
The base node has to be placed in the middle of the harvesting area.
The Harvester processes one node every 4 seconds.
It requires one item Bio Fuel per 20 nodes.
]]--
-- for lazy programmers
local S = function(pos) if pos then return minetest.pos_to_string(pos) end end
local P = minetest.string_to_pos
local M = minetest.get_meta
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local CYCLE_TIME = 4
local MAX_HEIGHT = 18 -- harvesting altitude
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local MAX_DIAMETER = 33
local BURNING_TIME = 20 -- fuel
local STANDBY_TICKS = 4 -- used for blocked state
local COUNTDOWN_TICKS = 2
local OFFSET = 5 -- for uneven terrains
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-- start on top of the base block
local function working_start_pos(pos)
local working_pos = table.copy(pos)
working_pos.y = working_pos.y + MAX_HEIGHT
return working_pos
end
local State = tubelib.NodeStates:new({
node_name_passive = "tubelib_addons1:harvester_base",
node_name_defect = "tubelib_addons1:harvester_defect",
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infotext_name = "Tubelib Harvester",
cycle_time = CYCLE_TIME,
standby_ticks = STANDBY_TICKS,
has_item_meter = true,
aging_factor = 15,
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on_start = function(pos, meta, oldstate)
local this = minetest.deserialize(meta:get_string("this"))
this.idx = 0
this.working_pos = working_start_pos(pos)
meta:set_string("this", minetest.serialize(this))
end,
})
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local Radius2Idx = {[4]=1 ,[6]=2, [8]=3, [10]=4, [12]=5, [14]=6, [16]=7}
local function gen_working_steps()
-- Working steps like a snail shell from inner to outer
local t = {}
for steps = 1,MAX_DIAMETER,2 do
for idx = 1,steps do
t[#t+1] = 0
end
for idx = 1,steps do
t[#t+1] = 1
end
steps = steps + 1
for idx = 1,steps do
t[#t+1] = 2
end
for idx = 1,steps do
t[#t+1] = 3
end
end
return t
end
local WorkingSteps = gen_working_steps()
local function formspec(pos, meta)
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-- some recalculations
local this = minetest.deserialize(meta:get_string("this"))
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local endless = this.endless == 1 and "true" or "false"
local fuel = this.fuel * 100/BURNING_TIME
if State:get_state(meta) ~= tubelib.RUNNING then
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fuel = 0
end
local radius = Radius2Idx[this.radius] or 2
return "size[9,8]"..
default.gui_bg..
default.gui_bg_img..
default.gui_slots..
"dropdown[0,0;1.5;radius;4,6,8,10,12,14,16;"..radius.."]"..
"label[1.6,0.2;Area radius]"..
"checkbox[0,1;endless;Run endless;"..endless.."]"..
"list[context;main;5,0;4,4;]"..
"list[context;fuel;1.5,3;1,1;]"..
"item_image[1.5,3;1,1;tubelib_addons1:biofuel]"..
"image[2.5,3;1,1;default_furnace_fire_bg.png^[lowpart:"..
fuel..":default_furnace_fire_fg.png]"..
"image_button[3.5,3;1,1;".. State:get_state_button_image(meta) ..";state_button;]"..
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"list[current_player;main;0.5,4.3;8,4;]"..
"listring[context;main]"..
"listring[current_player;main]"
end
State:register_formspec_func(formspec)
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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 = M(pos):get_inventory()
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if listname == "main" then
return stack:get_count()
elseif listname == "fuel" and stack:get_name() == "tubelib_addons1:biofuel" then
return stack:get_count()
end
return 0
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
return stack:get_count()
end
local function get_next_pos(old_pos, idx)
local facedir = WorkingSteps[idx]
return vector.add(old_pos, core.facedir_to_dir(facedir))
end
-- Remove saplings lying arround
local function remove_all_sapling_items(pos)
for _, object in pairs(minetest.get_objects_inside_radius(pos, 4)) do
local lua_entity = object:get_luaentity()
if not object:is_player() and lua_entity and lua_entity.name == "__builtin:item" then
object:remove()
end
end
end
-- Remove wood/leave nodes and place sapling if necessary
-- Return false if inventory is full
-- else return true
local function remove_or_replace_node(this, pos, inv, node, order)
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local next_pos = table.copy(pos)
next_pos.y = next_pos.y - 1
-- Not enough space in the inventory
if not inv:room_for_item("main", ItemStack(node.name)) then
return false
end
local next_node = minetest.get_node_or_nil(next_pos)
if next_node then
minetest.remove_node(pos)
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inv:add_item("main", ItemStack(order.drop))
this.num_items = this.num_items + 1
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if tubelib_addons1.GroundNodes[next_node.name] ~= nil and order.plant then -- hit the ground?
minetest.set_node(pos, {name=order.plant, paramtype2 = "wallmounted", param2=1})
if order.t1 ~= nil then
-- We have to simulate "on_place" and start the timer by hand
-- because the after_place_node function checks player rights and can't therefore
-- be used.
minetest.get_node_timer(pos):start(math.random(order.t1, order.t2))
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end
remove_all_sapling_items(pos)
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end
end
return true
end
-- check the fuel level and return false if empty
local function check_fuel(pos, this, meta)
if this.fuel <= 0 then
if tubelib.get_this_item(meta, "fuel", 1) == nil then
return false
end
this.fuel = BURNING_TIME
else
this.fuel = this.fuel - 1
end
return true
end
local function calc_new_pos(pos, this, meta)
this.idx = this.idx + 1
if this.idx >= this.max then
if this.endless == 1 then
this.idx = 0
this.working_pos = working_start_pos(pos)
return true
else
return false
end
end
this.working_pos = get_next_pos(this.working_pos, this.idx)
return true
end
-- Scan the space below the given position
-- Return false if inventory is full
-- else return true
local function harvest_field(this, meta)
local inv = meta:get_inventory()
local pos = table.copy(this.working_pos)
local start_y_pos = pos.y - 1
local stop_y_pos = pos.y - MAX_HEIGHT - OFFSET
if minetest.is_protected(pos, this.owner) then
return true
end
for y_pos = start_y_pos,stop_y_pos,-1 do
pos.y = y_pos
local node = minetest.get_node_or_nil(pos)
if node and node.name ~= "air" then
local order = tubelib_addons1.FarmingNodes[node.name] or tubelib_addons1.Flowers[node.name]
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if order then
if not remove_or_replace_node(this, pos, inv, node, order) then
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return false
end
else
return true -- hit the ground
end
end
end
return true
end
local function not_blocked(pos, this, meta)
if State:get_state(meta) == tubelib.BLOCKED then
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if harvest_field(this, meta) then
minetest.after(0, State.start, State, pos, meta)
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end
return false
end
return true
end
-- move the "harvesting copter" to the next pos and harvest the field below
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local function keep_running(pos, elapsed)
local meta = M(pos)
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local this = minetest.deserialize(meta:get_string("this"))
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this.num_items = 0
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if not_blocked(pos, this, meta) then
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if check_fuel(pos, this, meta) then
if calc_new_pos(pos, this, meta) then
if harvest_field(this, meta) then
meta:set_string("this", minetest.serialize(this))
meta:set_string("infotext",
"Tubelib Harvester "..this.number..
": running ("..this.idx.."/"..this.max..")")
State:keep_running(pos, meta, COUNTDOWN_TICKS, this.num_items)
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else
State:blocked(pos, meta)
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end
else
State:stop(pos, meta)
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end
else
State:fault(pos, meta)
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end
end
return State:is_active(meta)
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end
local function on_receive_fields(pos, formname, fields, player)
if minetest.is_protected(pos, player:get_player_name()) then
return
end
local meta = M(pos)
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local this = minetest.deserialize(meta:get_string("this"))
local radius = this.radius
if fields.radius ~= nil then
radius = tonumber(fields.radius)
end
if radius ~= this.radius then
this.radius = radius
this.max = (radius*2 + 1) * (radius*2 + 1)
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meta:set_string("this", minetest.serialize(this))
State:stop(pos, meta)
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end
if fields.endless ~= nil then
this.endless = fields.endless == "true" and 1 or 0
end
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meta:set_string("this", minetest.serialize(this))
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State:state_button_event(pos, fields)
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end
minetest.register_node("tubelib_addons1:harvester_base", {
description = "Tubelib Harvester Base",
tiles = {
-- up, down, right, left, back, front
'tubelib_front.png',
'tubelib_front.png',
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'tubelib_addons1_harvester.png',
},
after_place_node = function(pos, placer)
local meta = M(pos)
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local inv = meta:get_inventory()
inv:set_size('main', 16)
inv:set_size('fuel', 1)
local number = tubelib.add_node(pos, "tubelib_addons1:harvester_base")
local this = {
number = number,
owner = placer:get_player_name(),
working_pos = working_start_pos(pos),
fuel = 0,
endless = 0,
radius = 6,
idx = 0,
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max = (6+1+6) * (6+1+6)
}
meta:set_string("this", minetest.serialize(this))
State:node_init(pos, number)
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end,
on_dig = function(pos, node, puncher, pointed_thing)
if minetest.is_protected(pos, puncher:get_player_name()) then
return
end
local meta = M(pos)
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local inv = meta:get_inventory()
if inv:is_empty("main") then
minetest.node_dig(pos, node, puncher, pointed_thing)
tubelib.remove_node(pos)
end
end,
after_dig_node = function(pos, oldnode, oldmetadata, digger)
State:after_dig_node(pos, oldnode, oldmetadata, digger)
end,
on_rotate = screwdriver.disallow,
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on_receive_fields = on_receive_fields,
on_timer = keep_running,
allow_metadata_inventory_put = allow_metadata_inventory_put,
allow_metadata_inventory_take = allow_metadata_inventory_take,
drop = "",
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paramtype = "light",
sunlight_propagates = true,
paramtype2 = "facedir",
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groups = {choppy=2, cracky=2, crumbly=2},
is_ground_content = false,
sounds = default.node_sound_wood_defaults(),
})
minetest.register_node("tubelib_addons1:harvester_defect", {
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description = "Tubelib Harvester Base",
tiles = {
-- up, down, right, left, back, front
'tubelib_front.png',
'tubelib_front.png',
'tubelib_addons1_harvester.png^tubelib_defect.png',
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},
on_construct = function(pos)
local inv = M(pos):get_inventory()
inv:set_size('main', 16)
inv:set_size('fuel', 1)
end,
after_place_node = function(pos, placer)
local number = tubelib.add_node(pos, "tubelib_addons1:harvester_base")
local this = {
number = number,
owner = placer:get_player_name(),
working_pos = working_start_pos(pos),
fuel = 0,
endless = 0,
radius = 6,
idx = 0,
max = (6+1+6) * (6+1+6)
}
local meta = M(pos)
meta:set_string("this", minetest.serialize(this))
State:node_init(pos, number)
State:defect(pos, meta)
end,
on_dig = function(pos, node, puncher, pointed_thing)
if minetest.is_protected(pos, puncher:get_player_name()) then
return
end
local meta = M(pos)
local inv = meta:get_inventory()
if inv:is_empty("main") then
minetest.node_dig(pos, node, puncher, pointed_thing)
tubelib.remove_node(pos)
end
end,
on_rotate = screwdriver.disallow,
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allow_metadata_inventory_put = allow_metadata_inventory_put,
allow_metadata_inventory_take = allow_metadata_inventory_take,
paramtype = "light",
sunlight_propagates = true,
paramtype2 = "facedir",
groups = {choppy=2, cracky=2, crumbly=2, not_in_creative_inventory=1},
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is_ground_content = false,
sounds = default.node_sound_wood_defaults(),
})
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minetest.register_craft({
output = "tubelib_addons1:harvester_base",
recipe = {
{"default:steel_ingot", "default:mese_crystal", "default:steel_ingot"},
{"default:steel_ingot", "default:mese_crystal", "tubelib:tube1"},
{"group:wood", "default:mese_crystal", "group:wood"},
},
})
tubelib.register_node("tubelib_addons1:harvester_base", {"tubelib_addons1:harvester_defect"}, {
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on_pull_item = function(pos, side)
return tubelib.get_item(M(pos), "main")
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end,
on_push_item = function(pos, side, item)
return tubelib.put_item(M(pos), "fuel", item)
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end,
on_unpull_item = function(pos, side, item)
return tubelib.put_item(M(pos), "main", item)
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end,
on_recv_message = function(pos, topic, payload)
if topic == "fuel" then
return tubelib.fuelstate(M(pos), "fuel")
end
local resp = State:on_receive_message(pos, topic, payload)
if resp then
return resp
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else
return "unsupported"
end
end,
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on_node_load = function(pos)
State:on_node_load(pos)
end,
on_node_repair = function(pos)
return State:on_node_repair(pos)
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end,
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})
-- update to v0.08
minetest.register_lbm({
label = "[tubelib_addons1] Harvester update",
name = "tubelib_addons1:update",
nodenames = {"tubelib_addons1:harvester_base", "tubelib:harvester_base_active"},
run_at_every_load = false,
action = function(pos, node)
local meta = M(pos)
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local this = minetest.deserialize(meta:get_string("this"))
if this then
this.working_pos = this.copter_pos or working_start_pos(pos)
meta:set_string("this", minetest.serialize(this))
end
end
})