backward compat with [areas]

areas.lua

@@ -9,14 +9,30 @@ end
 -- protection check
 local old_is_protected = minetest.is_protected
 function minetest.is_protected(pos, name)
-	local _, id = areas:getSmallestAreaAtPos(pos)
-	local xp_area = id and xp_areas[id]
-	if xp_area then
-		local xp = xp_redo.get_xp(name)
-		if xp_area.min and xp < xp_area.min then
-			return true
-		elseif xp_area.max and xp > xp_area.max then
-			return true
+	if areas.getSmallestAreaAtPos then
+		local _, id = areas:getSmallestAreaAtPos(pos)
+		local xp_area = id and xp_areas[id]
+		if xp_area then
+			local xp = xp_redo.get_xp(name)
+			if xp_area.min and xp < xp_area.min then
+				return true
+			elseif xp_area.max and xp > xp_area.max then
+				return true
+			end
+		end
+	else
+		local area_list = areas:getAreasAtPos(pos)
+		for id in pairs(area_list) do
+			local xp_area = xp_areas[id]
+
+			if xp_area then
+				local xp = xp_redo.get_xp(name)
+				if xp_area.min and xp < xp_area.min then
+					return true
+				elseif xp_area.max and xp > xp_area.max then
+					return true
+				end
+			end
 		end
 	end