From 2a56539e31845460080f633dc5a47f276b60dd12 Mon Sep 17 00:00:00 2001
From: HybridDog <adresse_test@t-online.de>
Date: Sat, 14 Feb 2015 21:49:54 +0100
Subject: [PATCH] test if stairsplus is available

log if stairsplus isnt available

abort if stairsplus isnt available
---
 extranodes/init.lua | 4 ++++
 1 file changed, 4 insertions(+)

diff --git a/extranodes/init.lua b/extranodes/init.lua
index 6f96217..c8c3f36 100644
--- a/extranodes/init.lua
+++ b/extranodes/init.lua
@@ -1,3 +1,7 @@
+if not rawget(_G, "stairsplus") then
+	error("[technic/extranodes] stairsplus not found")
+end
+
 -- Minetest 0.4.6 mod: extranodes
 -- namespace: technic
 -- Boilerplate to support localized strings if intllib mod is installed.