having trouble detecting when someone unsits from a chair.

Hey im having trouble detected when people stand up off of my chairs that im making for my bar. I want it to say a good bye message when tehy stand up but when ever i use the "changed" call, it doesn't work. Does anyone have any suggestions or different ways to detect if someone stands up from an object.

a quick check in-world shows that the changed event is fired with CHANGED_LINK (0x20) as the parameter on avatar sit and unsit.

try

changed(integer changed)
{

        llOwnerSay( (string) change);

}

sit and unsit gives you 32 (==0x20)

are you trapping the sit event ?

Try

(a) setting a sit target with llSitTarget so you can use llAvatarOnSitTarget()

(b) checking the value of llAvatarOnSitTarget() on the change event

e.g.

state_entry()
{
   llSitTarget(<-0.4, 0.0, 0.3>, ZERO_ROTATION);
}

changed(integer change)
{
   if ((change & CHANGED_LINK) && llAvatarOnSitTarget() == NULL_KEY) {
      llWhisper(0, "Goodbye!");
   }
}