/**
  * @param Event $event
  * @return CoordsCollection
  */
 private function getAttackerShots(Event $event)
 {
     $shotEvents = $this->eventRepository->findForGameByTypeAndPlayer($event->getGame(), Event::TYPE_SHOT, $event->getPlayer());
     $attackerShots = new CoordsCollection();
     foreach ($shotEvents as $shotEvent) {
         $attackerShots->append($shotEvent->getValue());
     }
     return $attackerShots;
 }