Attach

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/LSL

attach

Description

Event: attach( key id ){ ; }

23	Event ID
	Delay

Triggered in an object when the object attaches or detaches from agent.

• key

id

–

the avatar if attached, if not attached NULL_KEY.

Specification

Triggered

1. When the object is attached to an avatar
   • From the ground
   • From inventory
   • When the avatar wearing the object logs in
2. When object is detached (id == NULL_KEY)
   • Dropped to the ground
   • Derezzed to inventory
   • When the avatar wearing the object logs out (does not occur with current versions, but scripters should anticipate the possibility)

Not Triggered

1. When the avatar wearing the object teleports
   • Use CHANGED_TELEPORT to detect when the avatar teleports
2. When the avatar wearing the object moves from one region to another
   • Use CHANGED_REGION to detect when the avatar changes region

Caveats

All Issues ~ Search JIRA for related Bugs

Examples

The following is a simplified example of the attach event. The variable id will be the key of the avatar the scripted object is attached to otherwise it will take on the value of NULL_KEY. The conditional if statement is used to determine the value of the variable id. <lsl>default {

   attach(key id)
   {
       if(id)//tests if it is a valid key and not NULL_KEY
       {
           llSay(PUBLIC_CHANNEL,"I have been attached!");
       }
       else
       {
           llSay(PUBLIC_CHANNEL,"I have been detached!");
       }
   }

}</lsl>

Notes

on_rez & attach

on_rez will be triggered prior to attach when attaching from inventory or during login.

Derez Timing

Durring derez, an object is only given so much time to execute it's attach events. If these events are active when the script derezzes but have not completed, execution will finish when the object is next rezzed (this may not be desirable). It is advisable to keep your detach code simple. Also attach will not be triggered if the script was looping when last rezzed. (same with on_rez)

See Also

Events

• on_rez

Functions

• llAttachToAvatar
• llDetachFromAvatar
• llGetAttached

Articles

• Attachment

Deep Notes

Signature
event void attach( key id );