Detecting Attachments, is it possible?

[Loki Eliot]

Ive been trying out many ways to try and make the attaching of important HUDS for experiences as seemless as possible. I would like for a hud to be automatically attached across multiple regions for an experience i am working on but no matter what i try , i just cant work out a reliable accurate way how.

The thing that throws a spanner into what would seem to be a simple task of 'checking wether the visiting avatar has the hud attachment ON or OFF' is that i can not  target or detect an object attached to an avatar. This has resulted in me having to use elaberate work arounds with messages sent, database lists, sensors, all of which are oopen to inaccuracey when someone crashes.

Is there truley no way at all to simple script "Dear Avatar, do you currently have this HUD attached, Yes or No?"

 

Does anyone have any suggestions?

[Loki Eliot]

Perhaps there is a way to make the attachment detecatble that does not spam the simulator?

[Qie Niangao]

Just to answer the title of the thread, you can detect attachments using llGetAttachedList() -- but only those attached to "visible" (non-HUD) attachment points. Presumably that's to keep HUD-wearing private.

Thing is, even if you could get the UUID of the attached HUD, you might want to interrogate it to make sure it's really what it appears by name. Whatever the protocol you'd use for that interrogation you could get the same effect merely using llRegionSayTo the avatar's UUID (because an attachment's listen() gets all messages to the avatar).

Now, if you weren't worried about the avatar removing the HUD once they're in the region, the HUD could volunteer it's existence with a broadcast llRegionSay() on CHANGED_REGION. That's not as targeted as polling each avatar of interest, but might be easier than llGetAgentList bookkeeping if you care about every avatar in the region, and could be particularly useful if avatars' HUDs should know about each other.

[Loki Eliot]

oooh i had no heard of llGetAttachedList() this might get me closer to a more reliable system. I could rez both a HUD and a doppleganger attachment, and trust that both would attach at the same time, so when one is gone, so the other is also gone in cases such as crashing. 

Thanx for the tip

[Rolig Loon]

One problem with that approach, brilliant though it is, is that we are limited to wearing no more than 38 attachments, including HUDs. So, attaching two objects instead of just the HUD pushes the total up a bit, perhaps unnecessarily.  More importantly, if a user already has 37 attachments, then one of your two won't attach.  If it's the HUD, you'll never know.  I never would have thought this could be an issue myself, but I'm discovering that it's not uncommon for residents to have WAY more attachments than I would ever have imagined.

ETA:  In fact, a player can prevent your HUD from attaching deliberately by filling all attachment slots.

[Innula Zenovka]

A new flag for llGetObjectDetails, OBJECT_ATTACHED_SLOTS_AVAILABLE, was introduced during this week's roll outs on Blue Steel, Le Tigre and Magnum.   So, all being well, it should be live everywhere in a week or so's time.

http://wiki.secondlife.com/wiki/Release_Notes/Second_Life_RC_Magnum/16#16.12.03.322072

[Maikox]

Hi all,

 

i read on this topic that using llGetAttachedList()  i can have a list of attached object, but not the object attached in HUD position.

Is possible to have a list of Hud Attached object?

[Qie Niangao]

24 minutes ago, Maikox said:

Is possible to have a list of Hud Attached object?

Nope, and unlikely to ever happen. The viewer can't see them, and it's considered a privacy concern (otherwise they wouldn't have been excluded from llGetAttachedList).

[Wulfie Reanimator]

14 hours ago, Qie Niangao said:

Nope, and unlikely to ever happen. The viewer can't see them, and it's considered a privacy concern (otherwise they wouldn't have been excluded from llGetAttachedList).

For what it's worth, I'm 80% sure there's some data about HUD attachments (at least names) being communicated between viewers, I recall seeing something about it in the source code. But yeah, scripts don't have access to that info.

[Maikox]

Thank you for your responses! 

I have one last question: 
is it possible to have a list of items worn by another person, but is it possible to know the names of the scripts contained in those items?

[Wulfie Reanimator]

4 hours ago, Maikox said:

I have one last question: 
is it possible to have a list of items worn by another person, but is it possible to know the names of the scripts contained in those items?

No, but with llGetObjectDetails you can get:

• Running script count
• Total script count
• Total allocated script memory
• Total script time