Generic GA skeletton

#include <iostream>

struct Gene
{
    virtual void mutate(float factor) = 0;
    virtual void reset() = 0;
    virtual void randomize() = 0;
};

struct Creature
{
    std::vector< std::unique_ptr<Gene> > dna;

    void mutate(float factor) {
        for(auto& gene: dna)
            gene->mutate(factor);
    }
    void reset() {
        for(auto& gene: dna)
            gene->reset();
    }
    void randomize() {
        for(auto& gene: dna)
            gene->randomize();
    }
    virtual float fitness() const = 0;
};

struct World
{
    std::vector< std::unique_ptr<Creature> > creatures;
};

int main()
{
    return 0;
}