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No sensor

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Wiki description

Result of a call to llSensor or llSensorRepeat.

Caveats

  • sensor/no_sensor are not always the best solution:

Examples

//List all avatars in range.
default 
{
     on_rez(integer i) 
     {
          llSensor("", "", AGENT_BY_LEGACY_NAME, 96.0, PI);   // Detect any avatars within a 96 metre radius sphere
     }
     sensor(integer number_detected) 
     {
          integer i = 0;
          do 
          {
               llOwnerSay(llDetectedName(i) + " is " + (string) llVecDist(llGetPos(), llDetectedPos(i) ) + "m away.");
          }
          while(++i < number_detected);
     }
     no_sensor() 
     {
          llOwnerSay("No avatars in range.");
     }
}

Helper functions

//An alternative solution for find out if a user is not in range
//No sensor is used so the above caveat doesn't apply.

integer InRange(key uuid, float distance)
{
    list data = llGetObjectDetails(uuid, [OBJECT_POS]);
    if(data == [])
        return 0;
    return llVecDist(llList2Vector(data, 0), llGetPos()) <= distance;
}

See also: functions

Known issues

SVC-2409: llSensorRepeat not triggering no_sensor unless a sensor event handler is present
Original wiki source

Some wiki templates and tables need their original context. View this article on the Second Life Wiki. Technical wording and examples are retained from the source; historical guidance may differ from current behavior.

From the Second Life Wiki

Community documentation adapted from No sensor, by Linden Research, Inc. and contributing residents.View contributors and history.

Built from these wiki pages, as imported:

Licensed under CC BY-SA 3.0. Last wiki edit: .Formatting and links have been adapted for this site; API metadata follows the LSL definitions.