Add after_rotate in screwdriver API

mods/ITEMS/screwdriver/API.md

@@ -18,3 +18,11 @@ To use it, add the `on_rotate` function to the node definition.
  * use `on_rotate = false` to always disallow rotation
  * use `on_rotate = screwdriver.rotate_simple` to allow only face rotation
  * use `on_rotate = screwdriver.rotate_3way` (MineClone 2 extension) for pillar-like nodes that should only have 3 possible orientations)
+
+
+
+`after_rotate(pos)` (MineClone 2 extension)
+
+Called after the rotation has been completed
+
+ * `pos`: Position of the node that the screwdriver was used on

mods/ITEMS/screwdriver/init.lua

@@ -157,7 +157,11 @@ screwdriver.handler = function(itemstack, user, pointed_thing, mode, uses)
 	if should_rotate and new_param2 ~= node.param2 then
 		node.param2 = new_param2
 		minetest.swap_node(pos, node)
+	
 		minetest.check_for_falling(pos)
+		if ndef.after_rotate then
+			ndef.after_rotate(vector.new(pos))
+		end
 	end
 
 	if not (minetest.is_creative_enabled(user:get_player_name())) then