Script not seeing unsits

[QuietWren]

I'm making a script to add to existing chairs. It's supposed to note when a person sits on or unsits from the chair it's in, but for some reason it's only seeing the sit. Here is the snippet that is supposed to see the change:

    changed(integer change)
    {
        if (change == CHANGED_LINK)
        {
            llOwnerSay("The number of links has changed");
            kSitter = llAvatarOnSitTarget();
            if (kSitter == NULL_KEY)
            {
                llOwnerSay("Stand");
                onStand();
            }
            else
            {
                llOwnerSay("Sit");
                onSit();
            }
        }
    }

This works correctly for sits, firing the correct OwnerSays, but on standing up from the chair it's silent. Could this be blocked from change events by other scripts in the chair?

[Rolig Loon]

You can always test to see whether a person is sitting on the chair by asking

if ( llGetAgentSize( llGetLinkKey( llGetNumberOfPrims() ) ) == ZERO_VECTOR )

Try that and see what happens.  Meanwhile, don't write

if (change == CHANGED_LINK)

You should be testing by doing bitwise masking of change with CHANGED_LINK:

if (change & CHANGED_LINK)

 

[QuietWren]

Changing the change test to the mask fixed the problem Thanks!