integer toggle;
vector offset;
default
{
    state_entry()
    {
        llSay(0, "Hello, Avatar!");
    }

    touch_start(integer total_number)
    {
       toggle =!toggle;
       list l = llGetLinkPrimitiveParams(2,[PRIM_POS_LOCAL,PRIM_ROT_LOCAL]);
       rotation r = llList2Rot(l,1);
       vector v = llList2Vector(l,0);
       if(toggle){
           v.z+=1.0;
        }
        else{
          v.z-=1.0;
        }
           llSetLinkPrimitiveParamsFast(2,[PRIM_POS_LOCAL,v]);
    }

}