private static int SortbyFitness(GameObject o1, GameObject o2)
{
//attach to main camera
OrgClass o1fit = (OrgClass)o1.GetComponent("OrgClass");
OrgClass o2fit = (OrgClass)o2.GetComponent("OrgClass");
return(o1fit.fitness.CompareTo(o2fit.fitness));
}
void runTourn()
{
//grab 3-5 orgs for tournament
//rank reproduce orgs
int tournsize;
if (cubes.Count > 5)
{
tournsize = 5;
}
else
{
tournsize = cubes.Count;
}
tournament = new List <GameObject>();
while (tournament.Count < tournsize)
{
GameObject neworg = cubes[Random.Range(0, cubes.Count)];
if (neworg == null)
{
cubes.Remove(neworg);
//Debug.Log("killed a null cube");
neworg = cubes[Random.Range(0, cubes.Count - 1)];
}
else
{
if (!tournament.Contains(neworg))
{
tournament.Add(neworg);
}
}
}
//order the tournament by fitness
//Debug.Log("tourn" + tournament.Count + "cubes" + cubes.Count);
tournament.Sort(SortbyFitness);
if (tournament.Count > 1)
{
float total_fit = 0.0f;
for (int i = 0; i < tournament.Count; i++)
{
OrgClass org = (OrgClass)tournament[i].GetComponent("OrgClass");
total_fit += org.fitness;
}
float repro_prob = Random.Range(0.0f, 1.0f);
int winner_i = -1;
float fit_prob = 0.0f;
while (fit_prob < repro_prob)
{
winner_i += 1;
OrgClass org = (OrgClass)tournament[winner_i].GetComponent("OrgClass");
fit_prob += org.fitness / total_fit;
}
GameObject winner = tournament[4];
GameObject offspring = GenerateOffspring(winner);
//winner.renderer.material.color = Color.red;
cubes.Add(offspring);
//Debug.Log("new offspring through tournament");
Destroy(tournament[0].gameObject);
//Debug.Log("killed org in tournament");
cubes.Remove(tournament[0]);
tournament.Clear();
}
else if (tournament.Count == 1)
{
GameObject winner = tournament[(tournament.Count - 1)];
GameObject offspring = GenerateOffspring(winner);
//Debug.Log ("tournament size of 1");
cubes.Add(offspring);
cubes.Remove(winner);
}
}