default

{ 

    state_entry() 

    {

    }

    touch_start(integer num_detected) {

        integer prims = llGetNumberOfPrims();

        vector MyPos = llGetLocalPos();

        llMessageLinked(LINK_ALL_OTHERS, (integer)(MyPos.z*100), "Set", "");

    }

    link_message(integer sender_num, integer num, string msg, key id) 

    {

        integer leftneighbour;

        integer rightneighbour;

        vector myPos = llGetLocalPos();

        // work out the neighbour

        if (sender_num < 3) {

            leftneighbour = llGetNumberOfPrims();

        } else {

            leftneighbour = sender_num - 1;

        }

        if (sender_num == llGetNumberOfPrims()) {

            rightneighbour = 2;

        } else {

            rightneighbour = sender_num + 1; 

        }

      // debug

      // llOwnerSay("i am: " + (string)llGetLinkNumber() + " he sender is " + (string)sender_num +  " left neighbour: " + (string)leftneighbour + " right neighbour: " + (string)rightneighbour); 

        // if I'm the next one down

        if (llGetLinkNumber() == leftneighbour) {

            llSetPos(<myPos.x, myPos.y, (num/100) - 1>);

            llOwnerSay("i am: " + (string)llGetLinkNumber() + " and I'm moving DOWN to " + (string)((num/100) - 1));

        }

        if (llGetLinkNumber() == rightneighbour) {

            llSetPos(<myPos.x, myPos.y, (num/100) + 1>);

            llOwnerSay("i am: " + (string)llGetLinkNumber() + " and I'm moving UP to " + (string)((num/100) + 1));

        }

    }    

}