No sensor

Result of a call to llSensor or llSensorRepeat.

• The script must have a sensor event, without it no_sensor will not be triggered. An empty sensor event is enough to satisfy this condition and cause no_sensor to be triggered.
  • Using a sensor this way is not the easiest way of finding out if a user is not around. If determining if the user is in the sim is the goal then llGetAgentSize is a good alternative, another solution is to use llGetObjectDetails as you will see in the Useful Snippets section.

//List all avatars in range.
default {
     on_rez(integer i) {
          llSensor("", "", AGENT, 100000, 10000);
     }
     sensor(integer num) {
          integer i = 0;
          do {
               llOwnerSay(llDetectedName(i) + " is " + (string)llVecDist(llGetPos(), llDetectedPos(i)) + "m away.");
          }while(++i < num);
     }
     no_sensor() {
          llOwnerSay("No avatars in range.");
     }
}

//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()) <= dist;
}

Functions