Fix rename_area and buildable_to nodes on the edges of areas

chatcommands.lua

@@ -144,14 +144,14 @@ minetest.register_chatcommand("rename_area", {
 	privs = {},
 	func = function(name, param)
 	local found, _, id, newName = param:find("^(%d+)%s(.+)$")
-
 	if not found then
 		minetest.chat_send_player(name,
 				"Invalid usage, see /help rename_area")
 		return
 	end
 
-	index = areas:getIndexById(tonumber(id))
+	id = tonumber(id)
+	index = areas:getIndexById(id)
 
 	if not index then
 		minetest.chat_send_player(name, "That area doesn't exist.")
@@ -165,6 +165,7 @@ minetest.register_chatcommand("rename_area", {
 
 	areas.areas[index].name = newName
 	areas:save()
+	minetest.chat_send_player(name, "Area renamed.")
 end})
 
 

interact.lua

@@ -10,30 +10,33 @@ if minetest.can_interact then
 	old_can_interact = minetest.can_interact
 	function minetest.can_interact(pos, name)
 		if not areas:canInteract(pos, name) then
-			printWarning(name, pos)
 			return false
 		end
 		return old_can_interact(pos, name)
 	end
-else
-	local old_node_place = minetest.item_place_node
-	function minetest.item_place_node(itemstack, placer, pointed_thing)
-		-- XXX: buildable_to nodes can mess this up
+end
+
+local old_node_place = minetest.item_place_node
+function minetest.item_place_node(itemstack, placer, pointed_thing)
 	local pos = pointed_thing.above
+	local ndef = minetest.registered_nodes[pointed_thing.under]
+	if ndef and ndef.buildable_to then
+		pos = pointed_thing.under
+	end
+
 	if not areas:canInteract(pos, placer:get_player_name()) then
 		printWarning(placer:get_player_name(), pos)
 		return itemstack -- Abort place.
 	end
 	return old_node_place(itemstack, placer, pointed_thing)
-	end
+end
 
-	local old_node_dig = minetest.node_dig
-	function minetest.node_dig(pos, node, digger)
+local old_node_dig = minetest.node_dig
+function minetest.node_dig(pos, node, digger)
 	if not areas:canInteract(pos, digger:get_player_name()) then
 		printWarning(digger:get_player_name(), pos)
 		return -- Abort dig.
 	end
 	return old_node_dig(pos, node, digger)
-	end
 end
 

internal.lua

@@ -186,7 +186,7 @@ end
 
 -- Checks if a player owns an area or a parent of it
 function areas:isAreaOwner(id, name)
-	cur = self:getAreaById(id)
+	local cur = self:getAreaById(id)
 	if cur and minetest.check_player_privs(name, {areas=true}) then
 		return true
 	end