I am embarrassed that my Journal has included very little of relevance to Scripting and such methods of affecting the World, and would therefore appreciate the opportunity to post something along those lines.
is the script for a HUD which I designed some time ago. The basic principle is simple: place the script into a prim, attach that prim as a HUD and then touch it. If there are any other avatars in the vicinity, it will give one the option of following them, allowing one to carry on conversation whilst, say, appreciating a tour of a particularly lovely area. Touch the HUD prim again to cancel this pursuit.
The script allows for the crossing of sim boundaries, which ordinarily prevents all sorts of scanning. It will take one to the last known position of the pursued avatar, then a little further, and attempt to find the person concerned again.
I wrote this particular script as I have been many times annoyed by my inability to distinguish between green dots. "Ordinal, come see this astounding thing in Port Caledon!" I hear, and the chap/ess concerned takes off and flies at speed away from Caledon I, where I usually reside. I attempt to follow them, but when I enter Port Caledon, I see a dozen green dots, any one of which could be my interlocutor. Given that Caledon generally employs a Telehub System (of which I am in favour in most cases) I cannot be "TPed" to the spot concerned. And so begins a lengthy period of "to the left!", "it's the place that's on fire", "no, the other one" and so on which quite frankly is very tiresome. Engine mechanics are meant to take the tiresomeness out of everyday life and I believe that this script - crude and undoubtedly full of potential improvements as it is, I have not even looked at it recently - helps in that endeavour.
For the idle who merely wish to have the thing working: rez a prim, start a new script, copy and paste the script into the new script, save it, then attach to your HUD and donate L$5,000 to the Ordinal Free Scripting Foundation. One of those steps may be considered optional, I leave it up to you to decide which.