#include <iostream>

#include <string>

#include <vector>

class Animal {

public:
    int id;
    virtual unsigned int get_l()const {
        return this->legs;
    };
    virtual std::string get_name()const {
        return this->name;
    };
    void set_leg(const unsigned int legs) {
        this->legs = legs;
    }
    void set_name(const std::string name) {
        this->name = name;
    }
    static Animal* animal_factory(const unsigned int &id);
protected:
    unsigned int legs;
    std::string name;
};
class Insect : public Animal {

public:
    Insect() {
        set_leg(6);
    }
};

class Spider :public Animal {
public:
    Spider() {
        set_leg(8);
    }
};
class Bird : public Animal {
public:
    Bird() {
        set_leg(2);
    }
};
class Cockroach : public Insect {
public:
    Cockroach() {
        set_name("cockroach");
    }
    unsigned int get_l() {return this->legs;}
     std::string get_name() {return this->name;}
};
class Tarantula : public Spider {
public:
    Tarantula() {
        set_name("tarantula");
    }
     unsigned int get_l() {return this->legs;}
     std::string get_name() {return this->name;}
};
class Sparrow : public Bird {
public:
    Sparrow() {
        set_name("sparrow");
    }
    ~Sparrow() {};
    unsigned int get_l() {return this->legs;}
    std::string get_name() {return this->name;}
};
Animal *Animal::animal_factory(const unsigned int &id) {
    switch (id) {
    case 1:
        return new Sparrow();
        break;
    case 2:
        return new Tarantula();
        break;
    case 3:
        return new Cockroach();
        break;
    default:
        Animal();
        break;
    }
};
class leg_counter : public Animal {
public:
    static unsigned int no_legs;
    leg_counter(Animal *anim) {
        std::string n = anim->get_name();
        std::cout << n << std::endl;
        no_legs += anim->get_l();
    }
};
unsigned int leg_counter::no_legs; // leg counter
int main() {
    for (int i = 1; i < 4; i++) {
        int n = i;
        leg_counter(Animal::animal_factory(i));
    }
    std::cout << leg_counter::no_legs << std::endl;

    return 0;
}