1 var offset = parseFloat($['offset']);
  2 var angle  = parseFloat($['wobble']);
  3 var source = $['source'];
  4 
  5 if (isNaN(offset) || offset<0)
  6     throw new Error("Invalid wobble offset!");
  7 
  8 if (isNaN(angle) || angle<0 || angle>360)
  9     throw new Error("Invalid wobble angle!");
 10 
 11 console.out("Start tracking source "+source+" at wobble angle "+angle+"deg and offset "+offset+"deg");
 12 
 13 include("scripts/CheckStates.js");
 14 
 15 checkSend(["DRIVE_CONTROL"]);
 16 dim.send("DRIVE_CONTROL/TRACK_SOURCE", offset, angle, source);
 17