public void AddCreature(RatedCreature <Creature> newCreature)
{
if (IsBetterThanBest(newCreature))
{
HandleNewBest(newCreature);
}
if (heap.IsFull)
{
if (newCreature.CompareTo(heap.PeekMin()) > 0) //if newCreature is better than the worst of creatures in heap
{
Creature theWorst = heap.ExtractMin().TheCreature;
TrySaveDisposedCreature(theWorst);
heap.Insert(newCreature);
}
else
{
TrySaveDisposedCreature(newCreature.TheCreature);
}
}
else
{
heap.Insert(newCreature);
}
}
private void ComputeOneGenaration()
{
IEnumerable <Creature> newGeneration = mutationManager.GetChildren();
foreach (var child in newGeneration)
{
RatedCreature <Creature> evaluatedChild = EvaluateCreature(child);
AddCreatureToSelector(evaluatedChild);
}
}
public DefaultSelector(
NewBestCretureFoundEventDelegate <Creature> newBestFound,
RatedCreature <Creature> foreFather, int NumberOfSurvivals,
DisposedCreaturesStore <Creature> disposedCreatures)
{
NewBestCretureFound = newBestFound;
DisposedCreatures = disposedCreatures;
heap = new HeapOfMaximalSize <RatedCreature <Creature> >(NumberOfSurvivals);
bestCreature = foreFather;
AddCreature(foreFather);
}
/// <summary>
/// Return next creature and throws exception if set is empty
/// </summary>
public RatedCreature <Creature> GetNextCreature()
{
if (IsEmpty)
{
throw new PoolIsEmptyException();
}
RatedCreature <Creature> toReturn = enumeratorOfCreatures.Current;
IsEmpty = !enumeratorOfCreatures.MoveNext();
return(toReturn);
}
private void HandleNewBest(RatedCreature <Creature> newBestCreature)
{
bestCreature = newBestCreature;
NewBestCretureFound?.Invoke(newBestCreature.TheCreature, newBestCreature.FitnessValue);
}
private bool IsBetterThanBest(RatedCreature <Creature> creature) => bestCreature.CompareTo(creature) < 0;
private void AddCreatureToSelector(RatedCreature <Creature> creature)
{
lock (myEnvironment.Selector)
myEnvironment.Selector.AddCreature(creature);
}
public int CompareTo(RatedCreature <Creature> other) => FitnessValue.CompareTo(other.FitnessValue);