LemonLake-factory/machines/qarm.lua

function qarm_handle (a, b, target, stack, minv, obj)
	if target.name == "default:chest" or target.name == "default:chest_locked" then
		local meta = minetest.env:get_meta(b)
		local inv = meta:get_inventory()

		if inv:room_for_item("main", stack) then
			inv:add_item("main", stack)
			if obj~=nil then obj:remove() end
		elseif minv:room_for_item("main", stack) then
			minv:add_item("main", stack)
			if obj~=nil then obj:remove() end
		else  
			if obj~=nil then obj:moveto({x = pos.x + (a.x * 2), y = pos.y + 0.5, z = pos.z + (a.z * 2)}, false) end
		end
	end
	if target.name == "factory:swapper" then
		local meta = minetest.env:get_meta(b)
		local inv = meta:get_inventory()

		if inv:room_for_item("input", stack) then
			inv:add_item("input", stack)
			if obj~=nil then obj:remove() end
		elseif minv:room_for_item("input", stack) then
			minv:add_item("input", stack)
			if obj~=nil then obj:remove() end
		else  
			if obj~=nil then obj:moveto({x = pos.x + a.x, y = pos.y + 1, z = pos.z + a.z }, false) end
		end
	end
	for i,v in ipairs(armDevicesFurnacelike) do
		if target.name == v then
			local meta = minetest.env:get_meta(b)
			local inv = meta:get_inventory()

			if minetest.dir_to_facedir({x = -a.x, y = -a.y, z = -a.z}) == minetest.get_node(b).param2 then
				-- back, fuel
				if inv:room_for_item("fuel", stack) then
					inv:add_item("fuel", stack)
					if obj~=nil then obj:remove() end
				elseif minv:room_for_item("main", stack) then
					minv:add_item("main", stack)
					if obj~=nil then obj:remove() end
				else
					if obj~=nil then obj:moveto({x = pos.x + (a.x * 2), y = pos.y + 0.5, z = pos.z + (a.z * 2)}, false) end
				end
			else
				-- everytin else, src
				if inv:room_for_item("src", stack) then
					inv:add_item("src", stack)
					if obj~=nil then obj:remove() end
				elseif minv:room_for_item("main", stack) then
					minv:add_item("main", stack)
					if obj~=nil then obj:remove() end
				else
					if obj~=nil then obj:moveto({x = pos.x + (a.x * 2), y = pos.y + 0.5, z = pos.z + (a.z * 2)}, false) end
				end
			end
		end
	end
end

factory.qformspec =
	"size[8,8.5]"..
	factory_gui_bg..
	factory_gui_bg_img..
	factory_gui_slots..
	"list[current_name;main;0,0.3;8,3;]"..
	"list[current_player;main;0,4.25;8,1;]"..
	"list[current_player;main;0,5.5;8,3;8]"..
	factory.get_hotbar_bg(0,4.25)

minetest.register_node("factory:queuedarm",{
	drawtype = "nodebox",
	tiles = {"factory_steel_noise.png"},
	paramtype = "light",
	description = "Queued Pneumatic Mover",
	groups = {cracky=3},
	paramtype2 = "facedir",
	legacy_facedir_simple = true,
	node_box = {
		type = "fixed",
		fixed = {
			{-0.5,-0.5,-0.5,0.5,-0.4375,0.5}, --base1
			{-0.125,-0.5,-0.375,0.125,0.0625,0.375}, --base2
			{-0.125,0.25,-0.5,0.125,0.3125,0.375}, --tube
			{-0.375,-0.5,-0.1875,0.375,0.0625,0.0625}, --base3
			{-0.125,-0.125,0.375,0.125,0.125,0.5}, --tube2
			{-0.125,0.0625,0.3125,0.125,0.25,0.375}, --nodebox6
			{-0.125,0.0625,-0.5,-0.0625,0.25,0.3125}, --nodebox7
			{0.0625,0.0625,-0.5,0.125,0.25,0.3125}, --nodebox8
			{-0.0625,0.0625,-0.5,0.0625,0.125,0.3125}, --nodebox9
			{-0.25,0.3125,-0.125,0.25,0.8,0.375}, --NodeBox10
			{-0.1875,0.1875,-0.5,-0.125,0.3125,0.375}, --NodeBox11
			{0.125,0.1875,-0.5,0.1875,0.3125,0.375}, --NodeBox12
			{-0.125,0.3125,-0.4375,0.125,0.5,-0.125}, --NodeBox13
		}
	},
	selection_box = {
		type = "fixed",
		fixed = {
			{-0.5,-0.5,-0.5,0.5,0.5,0.5},
		}
	},
	on_construct = function(pos)
		local meta = minetest.get_meta(pos)
		meta:set_string("formspec",factory.qformspec)
		meta:set_string("infotext", "Queued Pneumatic Mover")
		local inv = meta:get_inventory()
		inv:set_size("main", 8*3)
	end,
	can_dig = function(pos,player)
		local meta = minetest.get_meta(pos);
		local inv = meta:get_inventory()
		return inv:is_empty("main")
	end,
	on_metadata_inventory_move = function(pos, from_list, from_index, to_list, to_index, count, player)
		minetest.log("action", player:get_player_name()..
				" moves stuff in queued mover at "..minetest.pos_to_string(pos))
	end,
    on_metadata_inventory_put = function(pos, listname, index, stack, player)
		minetest.log("action", player:get_player_name()..
				" moves stuff to queued mover at "..minetest.pos_to_string(pos))
	end,
    on_metadata_inventory_take = function(pos, listname, index, stack, player)
		minetest.log("action", player:get_player_name()..
				" takes stuff from queued mover at "..minetest.pos_to_string(pos))
	end,
})

minetest.register_abm({
	nodenames = {"factory:queuedarm"},
	neighbors = nil,
	interval = 1,
	chance = 1,
	action = function(pos, node, active_object_count, active_object_count_wider)
		local mmeta = minetest.env:get_meta(pos)
		local minv = mmeta:get_inventory()
		local all_objects = minetest.get_objects_inside_radius(pos, 0.8)
		local a = minetest.facedir_to_dir(minetest.get_node(pos).param2)
		local b = {x = pos.x + a.x, y = pos.y + a.y, z = pos.z + a.z,}
		local target = minetest.get_node(b)
		for _,obj in ipairs(all_objects) do
			if not obj:is_player() and obj:get_luaentity() and (obj:get_luaentity().name == "__builtin:item" or obj:get_luaentity().name == "factory:moving_item") then
				local stack = ItemStack(obj:get_luaentity().itemstring)
				qarm_handle(a, b, target, stack, minv, obj)
			end
		end
		for i,stack in ipairs(minv:get_list("main")) do
			if stack:get_name() ~= "" then
				minv:remove_item("main", stack)
				qarm_handle(a, b, target, stack, minv, nil)
				return
			end
		end	
	end,
})