Bug

[isaackhlam]

Evolutionary-Computing/main.cpp

Lines 511 to 538 in ce3d063

	std::pair<const Gene*, const Gene*> fitnessProportionalSelection() const {
	//TODO: Dunno why this won't work for subtract the fitness
	// This is working well for int type gene...
	//std::uniform_real_distribution<> dis(0.0, totalFitness - minFitness * populationSize);
	std::uniform_real_distribution<> dis(0.0, totalFitness);
	double rnd1 = dis(gen);
	double rnd2 = dis(gen);
	const Gene* parent1 = nullptr;
	const Gene* parent2 = nullptr;
	double accumulatedFitness = 0.0;
	for(const auto& individual : individuals) {
	accumulatedFitness += individual->getFitness();
	//TODO: Fix this later....
	// It return nullptr for parent...
	//accumulatedFitness -= minFitness;
	if (parent1 == nullptr && accumulatedFitness >= rnd1) {
	parent1 = individual.get();
	}
	if (parent2 == nullptr && accumulatedFitness >= rnd2) {
	parent2 = individual.get();
	}
	if (parent1 != nullptr && parent2 != nullptr) {
	break;
	}
	}
	return {parent1, parent2};
	}