Converted to use a separated [matrix] mod wrapping the lua-matrix library

README.md

@@ -8,6 +8,12 @@ If you like my contributions you may consider reading http://entuland.com/en/sup
 
 WIP MOD forum thread: https://forum.minetest.net/viewtopic.php?f=9&t=20321
 
+# Dependencies
+
+A thin wrapper around a very useful library to deal with Matrices:
+
+[matrix] https://github.com/entuland/lua-matrix
+
 # Why yet another screwdriver?
 
 The default screwdriver included in minetest_game, as well as any other screwdriver mod I have found, operate differently depending on the node's direction and rotation. This means that any given click on a node may produce different results which you cannot predict at a glance.

init.lua

@@ -2,8 +2,6 @@ rhotator = {}
 
 local mod_path = minetest.get_modpath(minetest.get_current_modname())
 
-local matrix = dofile(mod_path .. "/lib/matrix.lua")
-
 -- constants
 
 local POS = {}

mod.conf

 name = rhotator
+
+depends = matrix