public object Clone()
{
SimEntity copy = (SimEntity)MemberwiseClone();
copy.Name = Name;
copy.EventBuffer = null;
return(copy);
}
public static void AddEntityDynamically(SimEntity e)
{
if (e == null)
{
throw new ArgumentException("Adding null entity.");
}
else
{
WriteMessage($"Adding: {e.Name}");
}
e.StartEntity();
}
public static void AddEntity(SimEntity e)
{
SimEvent evt;
if (_running)
{
evt = new SimEvent(SimEvent.CREATE, _clock, src: 1, dest: 0, tag: 0, edata: e);
_futureQueue.AddEvent(evt);
}
if (e.Id == -1)
{
int id = _entities.Count;
e.Id = id;
_entities.Add(e);
_entitiesByName.Add(e.Name, e);
}
}
private static void ProcessEvent(SimEvent e)
{
int dest, src;
SimEntity destEnt;
if (e.EventTime < _clock)
{
throw new ArgumentException("Past event detected.");
}
_clock = e.EventTime;
switch (e.InternalType)
{
case SimEvent.ENULL:
throw new ArgumentException("Event has a null type.");
case SimEvent.CREATE:
SimEntity newEntity = (SimEntity)e.Data;
AddEntityDynamically(newEntity);
break;
case SimEvent.SEND:
dest = e.Destination;
if (dest < 0)
{
throw new ArgumentException("Attempt to send to null entity detected.");
}
else
{
int tag = e.Tag;
destEnt = _entities.Find(ent => ent.Id == dest);
if (destEnt.State == SimEntity.WAITING)
{
Predicate p;
if (_waitPredicates.TryGetValue(dest, out p))
{
if (p == null || tag == 9999 || p.Match(e))
{
destEnt.EventBuffer = (SimEvent)e.Clone();
destEnt.State = SimEntity.RUNNABLE;
_waitPredicates.Remove(dest);
}
else
{
_deferedQueue.AddEvent(e);
}
}
}
else
{
_deferedQueue.AddEvent(e);
}
}
break;
case SimEvent.HOLD_DONE:
src = e.Source;
if (src < 0)
{
throw new ArgumentException("Null entity holding.");
}
else
{
_entities.Find(ent => ent.Id == src).State = SimEntity.RUNNABLE;
}
break;
}
}
