private Strategy RouletteSelectParent()
{
var randomizer = new Randomizer(); // thread-specific version
// using Roulette Wheel Selection, we grab a possibility proportionate to it's fitness compared to
// the total fitnesses of all possibilities
double randomValue = randomizer.GetDoubleFromZeroToOne() * totalFitness;
for (int i = 0; i < currentEngineParams.PopulationSize; i++)
{
randomValue -= currentGeneration[i].Fitness;
if (randomValue <= 0)
{
return(currentGeneration[i]);
}
}
return(currentGeneration[currentEngineParams.PopulationSize - 1]);
}
