/**
  * Convert a TrackEngine instance to a TrackEngine of another type.
  *
  * @see getConversionTargets()
  *
  * @param type $conversionTargetClass
  */
 public function convertTo($conversionTargetClass)
 {
     if ($conversionTargetClass == 'AnyStepEngine') {
         //TODO: Check for right sequence of rounds
     } else {
         parent::convertTo($conversionTargetClass);
     }
 }