LlAvatarOnSitTarget

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Revision as of 00:32, 4 August 2011 by Kaluura Boa (Talk | contribs)

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Summary

Function: key llAvatarOnSitTarget( );

Returns a key that is the UUID of the user seated on the prim.

If the prim lacks a sit target or there is no avatar sitting on the prim, then NULL_KEY is returned.

Caveats

  • A prim does not have a sit target unless llSitTarget has been called with a nonzero vector as the first argument.
  • If the prim lacks a sit target or the avatar is seated upon a different prim, the only way to determine how many and which avatars are seated upon the object is to scan the link set (for an example of this, see llGetNumberOfPrims).
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Examples

<lsl>default {

   state_entry()
   {
       // set sit target, otherwise this will not work 
       llSitTarget(<0.0, 0.0, 0.1>, ZERO_ROTATION);
   }
   changed(integer change)
   {
       if (change & CHANGED_LINK)
       { 
           key av = llAvatarOnSitTarget();
           if (av) // evaluated as true if key is valid and not NULL_KEY
           {
               llSay(0, "Hello " + llKey2Name(av) + ", thank you for sitting down");
           }
       }
   }
}</lsl>

Useful Snippets

<lsl>//Gets the link number of a seated avatar integer GetAgentLinkNumber(key avatar) {

   integer link_num = llGetNumberOfPrims();
   while (link_num > 1) // Check only child prims.
   {
       if (llGetLinkKey(link_num) == avatar) // If it is the avatar we want
       {
           return link_num; // then return the link number
       }
       --link_num; // else go on with next child.
   }
   // Avatar wasn't found
   return FALSE; // 0 (zero) for easy testing.

}</lsl>

Notes

The position of an avatar on a sit target can be determined with the use of llGetObjectDetails (see llSitTarget for an example).

See Also

Events

•  changed

Functions

•  llSitTarget
•  llGetLinkKey

Articles

•  CHANGED_LINK

Deep Notes

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Signature

function key llAvatarOnSitTarget();