Poseball script question

Hi, I have several poseballs with my own poseball script linked to one piece of furniture. When someone sits on one of them, I get a script error from the others because the changed event is triggered in all of them, not just the one I sit on. How can I avoid that?

In the changed() event handler, check to see if it applies to the specific scripted prim--usually testing if llAvatarOnSitTarget() has changed (assuming this is a normal, llSitTarget() poseball).

Use a llAvatarOnSitTarget() check to make sure someone is actually sitting on the prijm inside the change event.

Example:

changed(integer change)
{
if (change & CHANGED_LINK)
{
if (llAvatarOnSitTarget() != NULL_KEY)
{
llRequestPermissions(llAvatarOnSitTarget(), PERMISSION_TRIGGER_ANIMATION);
}
}
}

Yes, that's exactly what I've been doing. I still get that script error (avatar not found). Not in every piece of furniture with multiple poseballs, but every time in some of them. I can't make out what's the difference.

I think seeing the script is probably the next step. Other than that... probably the most common error is to try to stop the animation of a non-existent avatar just because there's no llAvatarOnSitTarget(). One way to avoid that is to test llGetPermissionsKey(). But "avatar not found" doesn't seem like quite the right error for that condition.

Take a look at my AO Overriding poseball script and see if that helps:

https://wiki.secondlife.com/wiki/AO_Overriding_Pose_Ball