/// <inheritdoc/>
public void Swap(int iswap1, int iswap2)
{
FourBitGene temp = this.data[iswap1];
this.data[iswap1] = this.data[iswap2];
this.data[iswap2] = temp;
}
private FourBitCustomGenome PerformErrorlessSmartCustomMutation(FourBitCustomGenome parent)
{
try
{
FourBitCustomGenome offSpring = new FourBitCustomGenome(parent.Data.Length);
var random = new Random();
var mutateIndex1 = random.Next(1, parent.Data.Length); // random number is between 0 and
for (var geneIndex = 0; geneIndex < parent.Size; geneIndex++)
{
if (geneIndex != mutateIndex1)
{
offSpring.Data[geneIndex] = parent.Data[geneIndex];
}
else
{
// mutation
FourBitGene geneToMutate = parent.Data[geneIndex];
var bitZeroCount = geneToMutate.Gene.Count(x => x == 0);
var randomNumber = random.Next(1, 101); // random number is between 0 and 100
switch (bitZeroCount)
{
case 0:
{
offSpring.Data[geneIndex] = geneToMutate;
break;
}
case 1:
{
var remainder = randomNumber % 4; // either zero or one or two or three
int [] mutatedGene = remainder == 0 ? new[] { 0, 0, 0, 1 } :
remainder == 1 ? new[] { 0, 0, 1, 0 } :
remainder == 2 ? new[] { 0, 1, 0, 0 } : new[] { 1, 0, 0, 0 };
offSpring.Data[geneIndex] = new FourBitGene {
Gene = mutatedGene
};
break;
}
case 2:
{
var remainder = randomNumber % 3; // either zero or one or two
int[] mutatedGene = remainder == 0 ? new[] { 0, 0, 1, 1 } :
remainder == 1 ? new[] { 0, 1, 1, 0 } : new[] { 1, 1, 0, 0 };
offSpring.Data[geneIndex] = new FourBitGene {
Gene = mutatedGene
};
break;
}
case 3:
{
var remainder = randomNumber % 2; // either zero or one
int[] mutatedGene = remainder == 0 ? new[] { 0, 1, 1, 1 } : new[] { 1, 1, 1, 0 };
offSpring.Data[geneIndex] = new FourBitGene {
Gene = mutatedGene
};
break;
}
case 4:
{
offSpring.Data[geneIndex] = geneToMutate;
break;
}
default:
{
offSpring.Data[geneIndex] = geneToMutate;
break;
}
}
}
}
return(offSpring);
}
catch (Exception e)
{
Console.WriteLine(e);
throw;
}
}