From 9da148347d304ec2f26af6f813e26cb02bc6a6e7 Mon Sep 17 00:00:00 2001
From: orwell96 <orwell@bleipb.de>
Date: Thu, 24 Jan 2019 17:50:26 +0100
Subject: Basic functions of "stop rail", missing ARS rules and signal. For
 signal, need to think of a callback system for signals and moving atlatc
 queue to core?

---
 advtrains/helpers.lua | 1 +
 1 file changed, 1 insertion(+)

(limited to 'advtrains/helpers.lua')

diff --git a/advtrains/helpers.lua b/advtrains/helpers.lua
index 511d32e..3514f55 100644
--- a/advtrains/helpers.lua
+++ b/advtrains/helpers.lua
@@ -381,6 +381,7 @@ end
 
 -- decodes a position encoded with encode_pos
 function advtrains.decode_pos(pts)
+	if not pts or not #pts==6 then return nil end
 	local stry = string.sub(pts, 1,4)
 	local strx = string.sub(pts, 5,8)
 	local strz = string.sub(pts, 9,12)
-- 
cgit v1.2.3