elepower/elepower_farming/nodes/harvester.lua

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-- How many seconds there are between runs
local HARVESTER_TICK = 10
-- How many plants we can collect in one run
local HARVESTER_SWEEP = 9
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-- How much sludge is generated as a by-product
local SLUDGE_PRODUCED = 10
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local function can_dig(pos, player)
local meta = minetest.get_meta(pos)
local inv = meta:get_inventory()
return inv:is_empty("dst")
end
local fdir_areas = {
{ -- NEG Z (0)
{x = -4, z = -8, y = 0},
{x = 4, z = 0, y = 0},
},
{ -- NEG X (1)
{x = -8, z = -4, y = 0},
{x = 0, z = 4, y = 0},
},
{ -- POS Z (2)
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{x = -4, z = 0, y = 0},
{x = 4, z = 8, y = 0},
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},
{ -- POS X (3)
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{x = 0, z = -4, y = 0},
{x = 8, z = 4, y = 0},
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},
nil, nil
}
local function harvest(pos, harvested, fdir)
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local front = ele.helpers.face_front(pos, fdir)
local ranges = fdir_areas[fdir + 1]
if not ranges then return nil end
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local range_st = vector.add(front, ranges[1])
local range_end = vector.add(front, ranges[2])
local shots = HARVESTER_SWEEP
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for x = range_st.x, range_end.x do
for z = range_st.z, range_end.z do
if shots == 0 then break end
local check_pos = {x = x, y = range_st.y, z = z}
local check_node = minetest.get_node_or_nil(check_pos)
if check_node and ele.helpers.get_item_group(check_node.name, "plant") then
local nodedef = minetest.registered_nodes[check_node.name]
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if (not nodedef['next_plant'] or not minetest.registered_nodes[nodedef.next_plant])
and not ele.helpers.get_item_group(check_node.name, "growing") then
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-- Can harvest
local drop = minetest.get_node_drops(check_node.name)
if drop then
for _,item in ipairs(drop) do
harvested[#harvested + 1] = item
end
minetest.remove_node(check_pos)
shots = shots - 1
end
end
end
end
end
return harvested
end
local function on_timer(pos, elapsed)
local refresh = false
local meta = minetest.get_meta(pos)
local node = minetest.get_node(pos)
local inv = meta:get_inventory()
local capacity = ele.helpers.get_node_property(meta, pos, "capacity")
local usage = ele.helpers.get_node_property(meta, pos, "usage")
local storage = ele.helpers.get_node_property(meta, pos, "storage")
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local work = meta:get_int("src_time")
local sludge = fluid_lib.get_buffer_data(pos, "sludge")
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if storage > usage and sludge.amount + SLUDGE_PRODUCED < sludge.capacity then
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if work == HARVESTER_TICK then
local harvested = {}
harvest(pos, harvested, node.param2)
work = 0
if #harvested > 0 then
storage = storage - usage
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sludge.amount = sludge.amount + SLUDGE_PRODUCED
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for _,itm in ipairs(harvested) do
local stack = ItemStack(itm)
if inv:room_for_item("dst", stack) then
inv:add_item("dst", stack)
end
end
end
else
work = work + 1
end
refresh = true
ele.helpers.swap_node(pos, "elepower_farming:harvester_active")
else
ele.helpers.swap_node(pos, "elepower_farming:harvester")
end
local power_percent = math.floor((storage / capacity)*100)
local work_percent = math.floor((work / HARVESTER_TICK)*100)
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meta:set_string("formspec", elefarm.formspec.harvester_formspec(work_percent, power_percent, sludge))
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meta:set_int("storage", storage)
meta:set_int("src_time", work)
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meta:set_string("sludge_fluid", "elepower_farming:sludge_source")
meta:set_int("sludge_fluid_storage", sludge.amount)
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return refresh
end
ele.register_machine("elepower_farming:harvester", {
description = "Automatic Harvester",
ele_capacity = 12000,
ele_inrush = 288,
ele_usage = 128,
tiles = {
"elefarming_machine_base.png", "elefarming_machine_base.png", "elefarming_machine_side.png",
"elefarming_machine_side.png", "elefarming_machine_side.png", "elefarming_machine_harvester.png",
},
groups = {
oddly_breakable_by_hand = 1,
ele_machine = 1,
ele_user = 1,
cracky = 1,
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tubedevice = 1,
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fluid_container = 1,
},
fluid_buffers = {
sludge = {
capacity = 8000,
drainable = true,
}
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},
on_construct = function (pos)
local meta = minetest.get_meta(pos)
local inv = meta:get_inventory()
inv:set_size("layout", 9)
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inv:set_size("dst", 15)
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meta:set_int("src_time", 0)
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meta:set_string("formspec", elefarm.formspec.harvester_formspec(0, 0))
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local node = minetest.get_node(pos)
end,
ele_active_node = true,
ele_active_nodedef = {
tiles = {
"elefarming_machine_base.png", "elefarming_machine_base.png", "elefarming_machine_side.png",
"elefarming_machine_side.png", "elefarming_machine_side.png", {
name = "elefarming_machine_harvester_animated.png",
animation = {
aspect_w = 16,
aspect_h = 16,
type = "vertical_frames",
length = 0.25,
},
},
}
},
can_dig = can_dig,
on_timer = on_timer,
})