protected void doCrossover(
IChromosome firstMate,
IChromosome secondMate,
List a_candidateChromosomes,
RandomGenerator generator) {
Gene[] firstGenes = firstMate.getGenes();
Gene[] secondGenes = secondMate.getGenes();
int locus = generator.nextInt(firstGenes.length);
// Swap the genes.
// ---------------
Gene gene1, gene11;
Gene gene2, gene22;
Integer firstAllele, firstAllele1;
Integer secondAllele, secondAllele1;
for (int j = locus; j < firstGenes.length; j++) {
gene1 = firstGenes[j];
gene2 = secondGenes[j];
firstAllele = (Integer) gene1.getAllele();
secondAllele = (Integer) gene2.getAllele();
if (payload[firstAllele] != null && payload[secondAllele] != null) {
if (!checkAlleles(firstMate, j, secondAllele)) gene1.setAllele(secondAllele);
if (!checkAlleles(secondMate, j, firstAllele)) gene2.setAllele(firstAllele);
}
if (payload[firstAllele] == null && payload[secondAllele] == null) {
if (payload[64 + firstAllele].getPair() != payload[64 + secondAllele].getPair()) continue;
if (payload[64 + firstAllele].getPair() == 1) {
if (!checkAlleles(firstMate, j, secondAllele)
&& !checkAlleles(secondMate, j, firstAllele)) {
if (chkonepair(j) || chktwopair(j + 1)) {
System.out.println("Crossover.. something wrong");
}
gene11 = firstGenes[j + 1];
firstAllele1 = (Integer) gene11.getAllele();
gene22 = secondGenes[j + 1];
secondAllele1 = (Integer) gene22.getAllele();
if (!checkAlleles(firstMate, j + 1, secondAllele1)) {
gene1.setAllele(secondAllele);
gene11.setAllele(secondAllele1);
}
if (!checkAlleles(secondMate, j + 1, firstAllele1)) {
gene2.setAllele(firstAllele);
gene22.setAllele(firstAllele1);
}
}
} else if (payload[64 + firstAllele].getPair() == 2) {
if (!checkAlleles(firstMate, j, secondAllele)
&& !checkAlleles(secondMate, j, firstAllele)) {
gene11 = firstGenes[j - 1];
firstAllele1 = (Integer) gene11.getAllele();
gene22 = secondGenes[j - 1];
secondAllele1 = (Integer) gene22.getAllele();
if (!checkAlleles(firstMate, j - 1, secondAllele1)) {
gene1.setAllele(secondAllele);
gene11.setAllele(secondAllele1);
}
if (!checkAlleles(secondMate, j - 1, firstAllele1)) {
gene2.setAllele(firstAllele);
gene22.setAllele(firstAllele1);
}
}
} else {
System.out.println("...Invalid Configuration Exception...");
}
}
}
// Add the modified chromosomes to the candidate pool so that
// they'll be considered for natural selection during the next
// phase of evolution.
// -----------------------------------------------------------
a_candidateChromosomes.add(firstMate);
a_candidateChromosomes.add(secondMate);
}
