public Entity Create(long?uniqueid = null)
{
var id = uniqueid ?? BitConverter.ToInt64(Guid.NewGuid().ToByteArray(), 0);
var result = _removedAndAvailable.RemoveLast();
if (result == null)
{
var entityId = _identifierPool.IsEmpty
? _nextAvailableId++
: _identifierPool.RemoveLast();
result = new Entity(_entityWorld, entityId);
}
else
{
result.Reset();
}
result.UniqueId = id;
_uniqueIdToEntities[result.UniqueId] = result;
ActiveEntities.Set(result.Id, result);
#if DEBUG
++EntitiesRequestedCount;
if (TotalCreated < long.MaxValue)
{
++TotalCreated;
}
#endif
AddedEntityEvent?.Invoke(result);
return(result);
}
public void Remove(Entity entity)
{
Debug.Assert(entity != null, "Entity must not be null.");
//Debug.Assert(entity.entityManager == this, ""); // TODO
ActiveEntities.Set(entity.Id, null);
RemoveComponentsOfEntity(entity);
#if DEBUG
--EntitiesRequestedCount;
if (TotalRemoved < long.MaxValue)
{
++TotalRemoved;
}
#endif
if (_removedAndAvailable.Count < RemovedEntitiesRetention)
{
_removedAndAvailable.Add(entity);
}
else
{
_identifierPool.Add(entity.Id);
}
RemovedEntityEvent?.Invoke(entity);
_uniqueIdToEntities.Remove(entity.UniqueId);
}
