From c92729f93d345255f3709c14e6ba7243abbffb03 Mon Sep 17 00:00:00 2001
From: Wanne <Wanne@3b4a5df2-a311-0410-b5c6-a8a6f20db521>
Date: Mon, 9 Jul 2012 08:13:05 +0000
Subject: [PATCH] - Protection for random crash issue I have seen due to
 accessing a negative index in an array. (by tazpn)

git-svn-id: https://ja2svn.mooo.com/source/ja2/trunk/GameSource/ja2_v1.13/Build@5368 3b4a5df2-a311-0410-b5c6-a8a6f20db521
---
 TileEngine/Render Dirty.cpp | 6 ++++--
 1 file changed, 4 insertions(+), 2 deletions(-)

diff --git a/TileEngine/Render Dirty.cpp b/TileEngine/Render Dirty.cpp
index 24831fee..30178ffa 100644
--- a/TileEngine/Render Dirty.cpp	
+++ b/TileEngine/Render Dirty.cpp	
@@ -500,8 +500,10 @@ BOOLEAN FreeBackgroundRect(INT32 iIndex)
 
 BOOLEAN FreeBackgroundRectPending(INT32 iIndex)
 {
-	gBackSaves[iIndex].fPendingDelete = TRUE;
-
+	if (iIndex != -1)
+	{
+		gBackSaves[iIndex].fPendingDelete = TRUE;
+	}
 	return(TRUE);
 }