public override int CompareTo(object a)
{
Sudokufitness Gene1 = this;
Sudokufitness Gene2 = (Sudokufitness)a;
return(Math.Sign(Gene2.CurrentFitness - Gene1.CurrentFitness));
}
public override void CopyGeneInfo(SudokuChromesome dest)
{
Sudokufitness theGene = (Sudokufitness)dest;
theGene.Length = Length;
theGene.TheMin = TheMin;
theGene.TheMax = TheMax;
}
public Population()
{
//
// TODO: Add constructor logic here
//
for (int i = 0; i < kInitialPopulation; i++)
{
Sudokufitness aGenome = new Sudokufitness(kLength, kMin, kMax);
aGenome.SetCrossoverPoint(kCrossover);
aGenome.CalculateFitness();
Genomes.Add(aGenome);
}
}
public void DoCrossover(ArrayList genes)
{
ArrayList GeneMoms = new ArrayList();
ArrayList GeneDads = new ArrayList();
for (int i = 0; i < genes.Count; i++)
{
// randomly pick the moms and dad's
if (Sudokufitness.TheSeed.Next(100) % 2 > 0)
{
GeneMoms.Add(genes[i]);
}
else
{
GeneDads.Add(genes[i]);
}
}
// now make them equal
if (GeneMoms.Count > GeneDads.Count)
{
while (GeneMoms.Count > GeneDads.Count)
{
GeneDads.Add(GeneMoms[GeneMoms.Count - 1]);
GeneMoms.RemoveAt(GeneMoms.Count - 1);
}
if (GeneDads.Count > GeneMoms.Count)
{
GeneDads.RemoveAt(GeneDads.Count - 1); // make sure they are equal
}
}
else
{
while (GeneDads.Count > GeneMoms.Count)
{
GeneMoms.Add(GeneDads[GeneDads.Count - 1]);
GeneDads.RemoveAt(GeneDads.Count - 1);
}
if (GeneMoms.Count > GeneDads.Count)
{
GeneMoms.RemoveAt(GeneMoms.Count - 1); // make sure they are equal
}
}
// now cross them over and add them according to fitness
for (int i = 0; i < GeneDads.Count; i++)
{
// pick best 2 from parent and children
Sudokufitness babyGene1 = (Sudokufitness)((Sudokufitness)GeneDads[i]).Crossover((Sudokufitness)GeneMoms[i]);
Sudokufitness babyGene2 = (Sudokufitness)((Sudokufitness)GeneMoms[i]).Crossover((Sudokufitness)GeneDads[i]);
GenomeFamily.Clear();
GenomeFamily.Add(GeneDads[i]);
GenomeFamily.Add(GeneMoms[i]);
GenomeFamily.Add(babyGene1);
GenomeFamily.Add(babyGene2);
CalculateFitnessForAll(GenomeFamily);
GenomeFamily.Sort();
if (Best2 == true)
{
// if Best2 is true, add top fitness genes
GenomeResults.Add(GenomeFamily[0]);
GenomeResults.Add(GenomeFamily[1]);
}
else
{
GenomeResults.Add(babyGene1);
GenomeResults.Add(babyGene2);
}
}
}
public override SudokuChromesome Crossover(SudokuChromesome g)
{
Sudokufitness aGene1 = new Sudokufitness();
Sudokufitness aGene2 = new Sudokufitness();
g.CopyGeneInfo(aGene1);
g.CopyGeneInfo(aGene2);
Sudokufitness CrossingGene = (Sudokufitness)g;
if (TheSeed.Next(2) == 1)
{
for (int j = 0; j < 9; j++)
{
CrossoverPoint = TheSeed.Next(8) + 1;
for (int k = 0; k < CrossoverPoint; k++)
{
aGene1.TheArray[k, j] = CrossingGene.TheArray[k, j];
// aGene1.TheArray[8 - k,j] = TheArray[8-k, j];
aGene2.TheArray[k, j] = TheArray[k, j];
// aGene2.TheArray[8 - k ,j] = CrossingGene.TheArray[8 - k,j];
}
for (int k = CrossoverPoint; k < 9; k++)
{
aGene2.TheArray[k, j] = CrossingGene.TheArray[k, j];
// aGene1.TheArray[8 - k,j] = TheArray[8-k, j];
aGene1.TheArray[k, j] = TheArray[k, j];
// aGene2.TheArray[8 - k ,j] = CrossingGene.TheArray[8 - k,j];
}
}
}
else
{
for (int j = 0; j < 9; j++)
{
CrossoverPoint = TheSeed.Next(8) + 1;
for (int k = 0; k < CrossoverPoint; k++)
{
aGene1.TheArray[j, k] = CrossingGene.TheArray[j, k];
// aGene1.TheArray[8 - k,j] = TheArray[8-k, j];
aGene2.TheArray[j, k] = TheArray[j, k];
// aGene2.TheArray[8 - k ,j] = CrossingGene.TheArray[8 - k,j];
}
for (int k = CrossoverPoint; k < 9; k++)
{
aGene2.TheArray[j, k] = CrossingGene.TheArray[j, k];
// aGene1.TheArray[8 - k,j] = TheArray[8-k, j];
aGene1.TheArray[j, k] = TheArray[j, k];
// aGene2.TheArray[8 - k ,j] = CrossingGene.TheArray[8 - k,j];
}
}
}
/*
* SudokuGenome CrossingGene = (SudokuGenome)g;
* for (int i = 0; i < CrossoverPoint; i++)
* {
* for (int j = 0; j < CrossoverPoint; j++)
* {
* aGene1.TheArray[i,j] = CrossingGene.TheArray[i,j];
* aGene2.TheArray[i,j] = TheArray[i, j];
* }
* }
*
* for (int i = CrossoverPoint; i < 9; i++)
* for (int j = CrossoverPoint; j < 9; j++)
* {
* aGene1.TheArray[i,j] = TheArray[i,j];
* aGene2.TheArray[i,j] = CrossingGene.TheArray[i,j];
* }
*
* for (int i = CrossoverPoint; i < 9; i++)
* for (int j = 0; j < CrossoverPoint; j++)
* {
* aGene1.TheArray[i,j] = TheArray[i,j];
* aGene2.TheArray[i,j] = CrossingGene.TheArray[i,j];
* }
*
* for (int i = 0; i < CrossoverPoint; i++)
* for (int j = CrossoverPoint; j < 9; j++)
* {
* aGene1.TheArray[i,j] = CrossingGene.TheArray[i,j];
* aGene2.TheArray[i,j] = TheArray[i,j];
* }
*/
// 50/50 chance of returning gene1 or gene2
Sudokufitness aGene = null;
if (TheSeed.Next(2) == 1)
{
aGene = aGene1;
}
else
{
aGene = aGene2;
}
return(aGene);
}