Difference between revisions of "LlDetectedPos"

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m
(returned position is in region coordinates)
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|func_footnote=Returns {{LSLG|ZERO_VECTOR|<0.0, 0.0, 0.0>}} if number is not valid sensed object.
|func_footnote=Returns {{LSLG|ZERO_VECTOR|<0.0, 0.0, 0.0>}} if number is not valid sensed object.
|func_desc
|func_desc
|return_text=that is the position of {{LSLGC|Detected|detected}} object number.
|return_text=that is the position (in [[Viewer_coordinate_frames#Region|region coordinates]]) of {{LSLGC|Detected|detected}} object number.
|spec
|spec
|caveats
|caveats

Revision as of 10:10, 21 January 2010

Summary

Function: vector llDetectedPos( integer number );

Returns a vector that is the position (in region coordinates) of detected object number.

• integer number Index of detection information

number does not support negative indexes. Returns <0.0, 0.0, 0.0> if number is not valid sensed object.

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

  • If number is out of bounds 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]
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Examples

<lsl>//--// get sim position of Avatars in "say" range //--//

//-- @@ = Contains code optimizations, see the following page for details //-- https://wiki.secondlife.com/wiki/User:Void_Singer/Optimizations

default {

 state_entry()
 {
   llOwnerSay( "Touch me to get the positions of avatars in 'Say' range" );
 }
 touch_start( integer vIntTouchCount )
 {
    //-- trigger the sensor for avatars within 20m
   llSensor( "", "", AGENT, 20, PI );
 }
 sensor( integer vIntFound )
 {
   integer vIntCounter = 0;
    //-- loop through all avatars found
   do
   {
     llOwnerSay( llDetectedName( vIntCounter )
                 + " @ "
                  //-- the next line gets the position of each found avatar
                 + (string)llDetectedPos( vIntCounter ) );
   }while (++vIntCounter < vIntFound); //-- @@
 }
  //-- sensor does not detect owner if it's attached
 no_sensor()
 {
   llOwnerSay( "I couldn't find anybody" );
 }
}</lsl>

See Also

Articles

•  Detected

Deep Notes

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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 vector llDetectedPos( integer number );