void Generate(List <Genome> champs)
{
_genCount++;
ClearField();
for (int i = 0; i < _population; i++)
{
var flappy = Instantiate(_flappy, _flappyParent);
flappy.transform.localPosition = Vector3.zero;
_alives.Add(flappy);
var aIController = flappy.GetComponent <FlappyAIController>();
Genome genome = new Genome();
if (i < champs.Count)
{
genome.CloneFrom(champs[i]);
flappy.SetChampion();
}
else if (i < champs.Count + _randomCount)
{
}
else if (_contestants.Count > 0)
{
MakeBaby(ref genome);
}
aIController.SetGenome(genome);
}
_contestants.Clear();
}
private void MakeBaby(ref Genome genome)
{
float rand = UnityEngine.Random.value;
if (rand < (1 - _chanceOfCrossover))
{
var player = SelectPlayer();
genome.CloneFrom(player._genome);
}
else
{
// rest of the time do crossover
var parent1 = SelectPlayer();
var parent2 = SelectPlayer();
//the crossover function expects the highest fitness parent to be the object and the lowest as the argument
if (parent1._score < parent2._score)
{
genome.Crossover(parent1._genome, parent2._genome);
}
else
{
genome.Crossover(parent2._genome, parent1._genome);
}
}
genome.Mutate();
}