From 1ce9e472f8a40b141450845f9e7e0deff514f175 Mon Sep 17 00:00:00 2001
From: GodLesZ <GodLesZ@54d463be-8e91-2dee-dedb-b68131a5f0ec>
Date: Tue, 13 Dec 2011 11:51:35 +0000
Subject: Added error message if a script tries to access an instance variable
 while no instance is attached (bugreport:4962)

git-svn-id: https://rathena.svn.sourceforge.net/svnroot/rathena/trunk@15089 54d463be-8e91-2dee-dedb-b68131a5f0ec
---
 src/map/script.c | 5 ++++-
 1 file changed, 4 insertions(+), 1 deletion(-)

diff --git a/src/map/script.c b/src/map/script.c
index 9fd0693e4..c9cb65f63 100644
--- a/src/map/script.c
+++ b/src/map/script.c
@@ -2342,8 +2342,11 @@ void get_val(struct script_state* st, struct script_data* data)
 		case '\'':
 			{
 				struct linkdb_node** n = NULL;
-				if( st->instance_id )
+				if (st->instance_id) {
 					n = &instance[st->instance_id].svar;
+				} else {
+					ShowWarning("script:get_val: cannot access instance variable '%s', defaulting to 0\n", name);
+				}
 				data->u.str = (char*)linkdb_search(n, (void*)reference_getuid(data));
 			}
 			break;
-- 
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