Added mese filter (takes full stack).

crafts.lua

@@ -156,6 +156,15 @@ if io.open(minetest.get_modpath("pipeworks").."/../technic/init.lua", "r") == ni
 		},
 	})
 	
+	minetest.register_craft( {
+		output = "pipeworks:mese_filter 2",
+		recipe = {
+		        { "default:steel_ingot", "default:steel_ingot", "homedecor:plastic_sheeting" },
+		        { "default:stick", "default:mese", "homedecor:plastic_sheeting" },
+		        { "default:steel_ingot", "default:steel_ingot", "homedecor:plastic_sheeting" }
+		},
+	})
+
 	minetest.register_craft( {
         output = "pipeworks:entry_panel 2",
         recipe = {

item_transport.lua

@@ -8,7 +8,7 @@ minetest.register_craftitem("pipeworks:filter", {
 })
 
 minetest.register_node("pipeworks:filter", {
-	description = "filter",
+	description = "Filter",
 	tiles = {"pipeworks_filter_top.png", "pipeworks_filter_top.png", "pipeworks_filter_output.png",
 		"pipeworks_filter_input.png", "pipeworks_filter_side.png", "pipeworks_filter_top.png"},
 	paramtype2 = "facedir",
@@ -94,6 +94,97 @@ minetest.register_node("pipeworks:filter", {
 end,
 })
 
+minetest.register_craftitem("pipeworks:mese_filter", {
+	description = "Mese filter",
+	stack_max = 99,
+})
+
+minetest.register_node("pipeworks:mese_filter", {
+	description = "Mese filter",
+	tiles = {"pipeworks_mese_filter_top.png", "pipeworks_mese_filter_top.png", "pipeworks_mese_filter_output.png",
+		"pipeworks_mese_filter_input.png", "pipeworks_mese_filter_side.png", "pipeworks_mese_filter_top.png"},
+	paramtype2 = "facedir",
+	groups = {snappy=2,choppy=2,oddly_breakable_by_hand=2,tubedevice=1,mesecon=2},
+	legacy_facedir_simple = true,
+	sounds = default.node_sound_wood_defaults(),
+	on_construct = function(pos)
+		local meta = minetest.env:get_meta(pos)
+		meta:set_string("formspec",
+				"invsize[9,9;]"..
+				"list[current_name;main;0,2;8,2;]"..
+				"list[current_player;main;0,5;8,4;]")
+		meta:set_string("infotext", "Mese filter")
+		local inv = meta:get_inventory()
+		inv:set_size("main", 8*4)
+	end,
+	can_dig = function(pos,player)
+		local meta = minetest.env:get_meta(pos);
+		local inv = meta:get_inventory()
+		return inv:is_empty("main")
+	end,
+	mesecons={effector={action_on=function(pos,node)
+					minetest.registered_nodes[node.name].on_punch(pos,node,nil)
+				end}},
+	on_punch = function (pos, node, puncher)
+	local meta = minetest.env:get_meta(pos);
+	local inv = meta:get_inventory()
+	local frompos
+	local dir
+	if node.param2==0 then
+		frompos={x=pos.x-1,y=pos.y,z=pos.z}
+		dir={x=1,y=0,z=0}
+	elseif node.param2==1 then
+		frompos={x=pos.x,y=pos.y,z=pos.z+1}
+		dir={x=0,y=0,z=-1}
+	elseif node.param2==2 then
+		frompos={x=pos.x+1,y=pos.y,z=pos.z}
+		dir={x=-1,y=0,z=0}
+	else
+		frompos={x=pos.x,y=pos.y,z=pos.z-1}
+		dir={x=0,y=0,z=1}
+	end
+	local fromnode=minetest.env:get_node(frompos)
+	local frominv
+	if not (minetest.registered_nodes[fromnode.name].tube and 
+		minetest.registered_nodes[fromnode.name].tube.input_inventory) then
+			return
+	end
+	local frommeta=minetest.env:get_meta(frompos)
+	local frominvname=minetest.registered_nodes[fromnode.name].tube.input_inventory
+	local frominv=frommeta:get_inventory()
+	for _,filter in ipairs(inv:get_list("main")) do
+		local sname=filter:get_name()
+		if sname ~="" then
+			for spos,stack in ipairs(frominv:get_list(frominvname)) do
+				if stack:get_name()==sname then
+					item=stack:take_item(stack:get_count())
+					frominv:set_stack(frominvname,spos,stack)
+					pos1=pos
+					item1=tube_item({x=pos1.x,y=pos1.y,z=pos1.z},item)
+					item1:get_luaentity().start_pos = {x=pos1.x,y=pos1.y,z=pos1.z}
+					item1:setvelocity(dir)
+					item1:setacceleration({x=0, y=0, z=0})
+					return
+				end
+			end
+		end
+	end
+	if inv:is_empty("main") then
+		for spos,stack in ipairs(frominv:get_list(frominvname)) do
+			if stack:get_name()~="" then
+				item=stack:take_item(stack:get_count())
+				frominv:set_stack(frominvname,spos,stack)
+				pos1=pos
+				item1=tube_item({x=pos1.x,y=pos1.y,z=pos1.z},item)
+				item1:get_luaentity().start_pos = {x=pos1.x,y=pos1.y,z=pos1.z}
+				item1:setvelocity(dir)
+				item1:setacceleration({x=0, y=0, z=0})
+				return
+			end
+		end
+	end
+end,
+})
 
 function tube_item(pos, item)
 	-- Take item in any format
@@ -303,7 +394,7 @@ function go_next(pos,velocity,stack)
 		speed=1
 	end
 	vel.speed=speed
-	if minetest.registered_nodes[cnode.name].tube and minetest.registered_nodes[cnode.name].tube.can_go then
+	if minetest.registered_nodes[cnode.name] and minetest.registered_nodes[cnode.name].tube and minetest.registered_nodes[cnode.name].tube.can_go then
 		can_go=minetest.registered_nodes[cnode.name].tube.can_go(pos,node,vel,stack)
 	else
 		can_go=notvel(adjlist,vel)