// One newer observation in transit for one existing physical firing order.
// The report's observed time survives both radio legs unchanged.
class ERR_MortarRefresh
{
 IEntity Gun;
 SCR_AIGroup Group;
 int OrderId;
 int RadioId;
 ref ERR_HQReport Report;
 ref ERR_HQRoute Route;

 void ERR_MortarRefresh(ERR_MortarBattery battery, ERR_HQReport report, ERR_HQRoute route)
 {
  Gun = battery.Gun;
  Group = battery.Group;
  OrderId = battery.OrderId;
  RadioId = route.MessageId;
  Report = report.Snapshot();
  Route = route;
 }
 bool Owns(ERR_MortarBattery battery)
 {
  return battery && Gun && Group && Gun == battery.Gun && Group == battery.Group && OrderId == battery.OrderId;
 }
 bool DeliveredFor(ERR_MortarBattery battery, ERR_HQReport report)
 {
  return !Route && Report && Report == report && Owns(battery);
 }
}

class ERR_MortarRefreshRules
{
 static bool Newer(ERR_HQReport current, ERR_HQReport incoming, float now)
 {
  return current && incoming && current.Target && incoming.Target == current.Target && incoming.MessageId > 0 && incoming.MessageId != current.MessageId && incoming.ObservedAt > current.ObservedAt && ERR_MortarPrediction.Fresh(incoming, now);
 }
}