Need Distance Between Two Objects

heyas;

i'm trying to script a kite system. it is in two parts, the spindle which is held in the hand, and the free-roaming kite part.

now, i want the kite to stay in a certain range of the spindle. what i can't figure out is how to get the kite to find the spindle to calculate the current distance between the two and adjust it, if needed.

i have the key of the spindle... how would i get the position? will a sensor get the distance to the object, somehow? i wasn't able to puzzle it out from the wiki on that.

thanks!

See this Radar Script for a good Example.

Let me quote a little part :

sensor(integer num_detected) {
        people=[];
        string result;
        integer n=-1;
        integer distance=0;
        integer detDist;
        string name;
        
        vector pos = llGetPos();
        //get the dist, name and direction of everyone we just scanned.
        for(n=0;n<num_detected && n<maxPeople;++n) {
            vector detPos = llDetectedPos(n);
            detDist = (integer)llVecDist(pos, detPos);
...

thanks, cindy!