Message-ID: <36DACAC2.514D824A@game-master.com>
From: Kevin Lang/Ultima <ultima AT game-master DOT com>
Organization: StormTech SoftWare
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Newsgroups: comp.os.msdos.djgpp
Subject: Re: [AL] grabber crashes my entire system
References: <19990228 DOT 224058 DOT -138105 DOT 1 DOT andygoth AT juno DOT com>
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Date: Mon, 01 Mar 1999 12:13:38 -0500
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To: djgpp AT delorie DOT com
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I think I figured it out:

in function:

int search_sprite_id(ISO_MAP *iso_map, unsigned int id) {
 int inx;
 A_SPRITE *temp;
 temp=iso_map->sprite_list.current;
 iso_map->sprite_list.current=iso_map->sprite_list.first;
 do {
  if (iso_map->sprite_list.current->next!=NULL) {
   iso_map->sprite_list.current=iso_map->sprite_list.current->next;
  }
 } while ((iso_map->sprite_list.current->next!=NULL) ||
(iso_map->sprite_list.current->id!=id));

 if (iso_map->sprite_list.current->next==NULL) {
  iso_map->sprite_list.current=temp;
  return 0;
 }
 return id;
};

I changed the || to &&

It kept going, causing a memory corruption bug. And there was another
bug where create_new_sprite_list wasn't setting ->next and ->previous to
NULL.

Now I have no crashes (in windows, have to see in dos)!!!
--
                                 -=šUltimaš=-
WWW: http://www.game-master.com/ultima/
EMAIL: mailto:ultimaATgame-masterDOTcom (anti-spam)
ICQ: 12919201

Member and founder of StormTech SoftWare, visit our page today!


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