From 031dd0f975ec724fb96128a81f7f59ba7e238f3f Mon Sep 17 00:00:00 2001
From: Joachim Stolberg <joe.stolberg@gmx.de>
Date: Wed, 9 Jan 2019 20:57:28 +0100
Subject: [PATCH] command position added

---
 sl_controller/controller.lua | 16 ++++++++++++++++
 1 file changed, 16 insertions(+)

diff --git a/sl_controller/controller.lua b/sl_controller/controller.lua
index f25f227..5650dee 100644
--- a/sl_controller/controller.lua
+++ b/sl_controller/controller.lua
@@ -12,6 +12,10 @@
 
 ]]--
 
+-- for lazy programmers
+local S = function(pos) if pos then return minetest.pos_to_string(pos) end end
+local M = minetest.get_meta
+
 local sHELP = [[SaferLua Controller
 
  This controller is used to control and monitor 
@@ -114,6 +118,18 @@ sl_controller.register_function("get_ms_time", {
 		" returns time with millisecond precision."
 })
 
+sl_controller.register_function("position", {
+	cmnd = function(self, number)
+		local info = tubelib.get_node_info(number)
+		if info then
+			return S(info.pos)
+		end
+		return "(-,-,-)"
+	end,
+	help = "$position(number)\n"..
+		" returns the position '(x,y,z)' of the device\n with given number."
+})
+
 
 local function formspec0(meta)
 	local state = meta:get_int("state") == tubelib.RUNNING