Fix issue #90 (Disappearing tank contents)

README.md

@@ -66,7 +66,7 @@ It is highly recommended that you install the following mods, too:
 For large servers with many player `lsqlite3` is recommended.
 The package has to be installed via [luarocks](https://luarocks.org/):
 
-    luarocks install lsqlite3
+    luarocks  --lua-version 5.1 install lsqlite3
 
 To enable this `unsafe` package, add 'techage' to the list of trusted mods in minetest.conf:
 

basis/nodedata_meta.lua

@@ -65,6 +65,7 @@ function api.store_mapblock_data(key, mapblock_data)
 			if pos then
 				item._POS_ = nil
 				local data = serialize(item)
+				item._POS_ = pos
 				local meta = M(pos)
 				meta:set_string("ta_data", data)
 				meta:mark_as_private("ta_data")

coal_power_station/firebox.lua

@@ -86,7 +86,7 @@ minetest.register_node("techage:coalfirebox", {
 
 	after_place_node = function(pos, placer)
 		if firebox.is_free_position(pos, placer:get_player_name()) then
-			techage.add_node(pos, "techage:coalfirebox")
+			techage.add_node(pos, "techage:coalfirebox", true)
 			local nvm = techage.get_nvm(pos)
 			nvm.running = false
 			nvm.burn_cycles = 0

coal_power_station/oilfirebox.lua

@@ -88,7 +88,7 @@ minetest.register_node("techage:oilfirebox", {
 
 	after_place_node = function(pos, placer)
 		if firebox.is_free_position(pos, placer:get_player_name()) then
-			techage.add_node(pos, "techage:oilfirebox")
+			techage.add_node(pos, "techage:oilfirebox", true)
 			local nvm = techage.get_nvm(pos)
 			nvm.running = false
 			nvm.burn_cycles = 0

furnace/firebox.lua

@@ -105,7 +105,7 @@ minetest.register_node("techage:furnace_firebox", {
 
 	on_construct = function(pos)
 		local nvm = techage.get_nvm(pos)
-		techage.add_node(pos, "techage:furnace_firebox")
+		techage.add_node(pos, "techage:furnace_firebox", true)
 		nvm.running = false
 		nvm.burn_cycles = 0
 		nvm.liquid = {}