Help With Multi-User HUD

I have a project where a user wears a HUD. The user than clicks on a prim on my land and the prim sends out a message on a channel. The message is then heard by the HUD and loads the appropriate textures on the HUD. This works great with a single user but I want it to work with multiple users. For example, if two people are wearing the HUD near the prim and one person clicks on it, I don't want both their HUDs to load the textures, just the avatar that originally clicked it.

Either include the clicking avatars UUID in your message or set the listen channel on the HUD based on the User's UUID key or name. That way you would get a unique listen channel for each user and the touched prim could just talk on that particular channel by calculating it the same way as the HUD does.

When the user clicks on the prim, get his key (llDetectedKey()) and send this with the message to the HUD. There, you split up the message and check whether the Owner of HUD is the one who clicked the prim...

This would look something like this:

// in the sender prim:

touch_start(integer num){

llSay(-12345, (string)llDetectedKey(0) + "|" + my_message; // where my_message is whatever you wanna tell the HUD

// we've got a message that contains the AVs Key followed by your message and divided with a pipe-sign (|)

}


// in the HUD

listen(integer channel, string name, key id, string message){

    if(channel == -12345){
        list tmp = llParseString2List(message, ["|"], []); // Split up the message into a list

        key hudOwner = llList2Key(tmp, 0);
        string myMessage = llList2String(tmp, 1);

        if(hudOwner == llGetOwner()){
            // Do whatever you need to do here
        }
    }

}

HTH

Thank you so much for the information. I can't believe I didn't think of that before!