follow drone that stays on my parcel?

Hi! I'd like to make an object that follows a person on my land but doesn't cross into my neighbor's parcel. I tried subdividing the land into a central area and an outer area without object entry, but I'm not allowed. I thought maybe I could combine this follow script (from the good old "wild slime":...

default
{
state_entry()
{
vector pos = llGetPos();
llSetStatus(STATUS_ROTATE_Z, FALSE);
llSetStatus(STATUS_PHYSICS, TRUE);
llSleep(0.1);
llMoveToTarget(pos,0.1);
key id = llGetOwner();
llSensorRepeat("","",AGENT,200000,7000*PI,.4);
}

sensor(integer total_number)
{
vector pos = llDetectedPos(0);
vector offset =<-1,0,1>;
pos+=offset;
llMoveToTarget(pos,.3);
}
}

...with this (the only script I could find with llOverMyLand):

default {
touch_start(integer num_detected) {
// check if the touching person is over the script owner's land
if (llOverMyLand(llDetectedKey(0))) {
llSay(0, llDetectedName(0) + " is on my land.";
} else {
llSay(0, llDetectedName(0) + " is NOT on my land.";
}
}
}

...but I'm a total scripting noob -- can anybody help?
Thanks!

sensor(integer n)
  {
  	 integer i = 0; //index of avs
  	 searching = TRUE; // are we lookin'?
  	 do
  		  if ( llOverMyLand(llDetectedKey(i)) )
  		  {
  			   searching = FALSE;
  		   } else {
  			   i++;
  		   }
  	 while(searching && i <= n);
  
  	 if ( i < n )
  	 {
  		  llMoveToTarget(llDetectedPos() + (<-1, -1, 1> * llDetectedRot(i), 0.35);
  	 } else {
  		  llMoveToTarget(llGetPos(), 0.35);
  	 }
  }
  
  no_sensor()
  {
  	 llMoveToTarget(llGetPos(), 0.35);
  }

Typed while tired, groggy from meds and not tested in-world, but it should get you started.

wow, thank you! I'll go try it now. Hope you feel better soon!

Hmm, does this work only on mainland parcels? it doesn't seem to work for me.

llOverMyLand() doesn't work on group deeded land unless the object is deeded too. Since you can't edit any more a deeded object, that's a very bad idea.

To keep an object in a parcel, I just use the parcel name.

string StartingParcel;

kbParcelNameAt(vector there)
{
return llList2String(llGetParcelDetails(there, [PARCEL_DETAILS_NAME]), 0);
}

In you default state_entry(), you add:

StartingParcel = kbParcelNameAt(llGetPos());

And the sensor event becomes:

sensor(integer n)
{
integer i = 0;
while(i  < n)
{
vector there = llDetectedPos(i) + (<-1, -1, 1> * llDetectedRot(i);
if (kbParcelNameAt(there) != StartingParcel)
{
llMoveToTarget(llGetPos(), 0.35); // Stay put.
++i;
}
else
{
i = n; // So we go only to the closest possible target.
// If you remove that line, we go to every detected AV over your land.
llMoveToTarget(there,  0.35);
}
}
}
 
no_sensor()
{
llMoveToTarget(llGetPos(), 0.35);
}

If you want the object to follow only you --That's what I guess from your snippet.-- the sensor event can be simplified.

First, just use:

llSensorRepeat("", llGetOwner(), AGENT, 100, PI, 0.5);

There's no need to try to sense any farther and PI already describe a full circle sensor. Then, since you're only one of a kind, no need to worry about anything but the first sensed AV.

sensor(integer n)
{
vector there = llDetectedPos(0) + (<-1, -1, 1> * llDetectedRot(0);
if (kbParcelNameAt(there) != StartingParcel)
{
llMoveToTarget(llGetPos(), 0.35); // Stay put.
}
else
{
llMoveToTarget(there,  0.35); // Or move.
}
}

Not tested in world... but I'm not under medication.  ;-)