Difference between revisions of "LlDetectedLinkNumber"

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(Adjust example script to focus on the essentials)
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default
default
{
{
// Drop this script into the root prim of of a build
// Touch any prim to learn its link number
     touch_start(integer num_detected)
     touch_start(integer num_detected)
     {
     {
         integer i;
         llOwnerSay("Link number clicked: " + (string)llDetectedLinkNumber(0) );      
        for(i=0; i<num_detected; ++i) {
            llOwnerSay("Link number clicked: " + (string)llDetectedLinkNumber(i));
        }
     }
     }
}
}

Revision as of 06:16, 26 December 2012

Summary

Function: integer llDetectedLinkNumber( integer number );
0.0 Forced Delay
10.0 Energy

Returns the integer link number of the triggered event. If not supported by the event, returns zero.

• integer number Index of detection information

number does not support negative indexes. For touch and collision categories of events only.

Specification

llDetected* functions only work if called from within Detection events (collision, collision_start, collision_end, sensor, touch, touch_start, touch_end) or in functions called by Detection events. They will fail silently and return unusable values if called during other events.

Caveats

  • llDetectedLinkNumber will return 0 in collision_start and collision_end events of VolumeDetect objects (SVC-2996).
  • If number is out of bounds this function returns 0 and the script continues to execute without an error message.
  • Events that enable the llDetected* functions always return at least one detected item.
    • Detection events are not raised if there is nothing detected.[1]
    • The detection event's items detected parameter is initially never less than 1.[2]

Examples

<lsl> default { // Drop this script into the root prim of of a build // Touch any prim to learn its link number

   touch_start(integer num_detected)
   {
       llOwnerSay("Link number clicked: " + (string)llDetectedLinkNumber(0) );       
   }

}

</lsl>

See Also

Events

•  touch_start
•  touch
•  touch_end
•  collision_start
•  collision
•  collision_end

Functions

•  llDetectedTouchFace

Articles

•  Detected

Deep Notes

Footnotes

  1. ^ The exception is no_sensor but it doesn't enable llDetected* functions.
  2. ^ Like all event parameters, the user can overwrite the initial value.

Signature

function integer llDetectedLinkNumber( integer number );