bug fixes

command.lua

@@ -388,6 +388,7 @@ end
 -- is incremented each time so that different item stacks will be considered.
 -- Returns nil if ItemList is empty.
 function tubelib.get_item(meta, listname)
+	if meta == nil or meta.get_inventory == nil then return nil end
 	local inv = meta:get_inventory()
 	if inv:is_empty(listname) then
 		return nil
@@ -411,6 +412,7 @@ end
 -- Get one item from the given ItemList, specified by stack number (1..n).
 -- Returns nil if ItemList is empty.
 function tubelib.get_this_item(meta, listname, number)
+	if meta == nil or meta.get_inventory == nil then return nil end
 	local inv = meta:get_inventory()
 	if inv:is_empty(listname) then
 		return nil
@@ -429,6 +431,7 @@ end
 -- Put the given item into the given ItemList.
 -- Function returns false if ItemList is full.
 function tubelib.put_item(meta, listname, item)
+	if meta == nil or meta.get_inventory == nil then return false end
 	local inv = meta:get_inventory()
 	if inv:room_for_item(listname, item) then
 		inv:add_item(listname, item)
@@ -440,6 +443,7 @@ end
 -- Get the number of items from the given ItemList.
 -- Returns nil if the number is not available.
 function tubelib.get_num_items(meta, listname, num)
+	if meta == nil or meta.get_inventory == nil then return nil end
 	local inv = meta:get_inventory()
 	if inv:is_empty(listname) then
 		return nil

distributor.lua

@@ -441,19 +441,3 @@ tubelib.register_node("tubelib:distributor", {"tubelib:distributor_active"}, {
 	end,
 })	
 --------------------------------------------------------------- tubelib
-
---------------------------- conversion to v2
-minetest.register_lbm({
-	label = "[Tubelib] Distributor update",
-	name = "tubelib:update",
-	nodenames = {"tubelib:distributor", "tubelib:distributor_active"},
-	run_at_every_load = false,
-	action = function(pos, node)
-		local meta = minetest.get_meta(pos)
-		if minetest.deserialize(meta:get_string("filter")) == nil then
-			local filter = {false,false,false,false}
-			meta:set_string("filter", minetest.serialize(filter))
-			meta:set_string("formspec", distributor_formspec(tubelib.STOPPED, filter))
-		end
-	end
-})

init.lua

@@ -21,6 +21,27 @@ tubelib = {
 	NodeDef = {},		-- node registration info
 }
 
+--------------------------- conversion to v0.04
+minetest.register_lbm({
+	label = "[Tubelib] Distributor update",
+	name = "tubelib:update",
+	nodenames = {"tubelib:distributor", "tubelib:distributor_active"},
+	run_at_every_load = false,
+	action = function(pos, node)
+		local meta = minetest.get_meta(pos)
+		if minetest.deserialize(meta:get_string("filter")) == nil then
+			local filter = {false,false,false,false}
+			meta:set_string("filter", minetest.serialize(filter))
+		end
+		local inv = meta:get_inventory()
+		inv:set_size('yellow', 6)
+		inv:set_size('green', 6)
+		inv:set_size('red', 6)
+		inv:set_size('blue', 6)
+	end
+})
+
+
 
 dofile(minetest.get_modpath("tubelib") .. "/tubes.lua")
 dofile(minetest.get_modpath("tubelib") .. "/command.lua")

pusher.lua

@@ -80,9 +80,8 @@ local function keep_running(pos, elapsed)
 		if tubelib.push_items(pos, "R", items) == false then				-- <<=== tubelib
 			-- place item back
 			tubelib.unpull_items(pos, "L", items)							-- <<=== tubelib
-			meta:set_string("infotext", "Pusher "..number..": blocked")
-		else
-			meta:set_string("infotext", "Pusher "..number..": running")
+			local node = minetest.get_node(pos)
+			return goto_sleep(pos, node)
 		end
 	else
 		if running <= 0 then