TP_T13_Z1

/* TP_Tutorijal_13 Zadatak_1 */
#include <iostream>
#include <cmath>
#include <string>
#include <stdexcept>


class Lik {
protected:
        std::string naziv;
public:
        Lik (std::string ime) : naziv (ime) {}
        virtual ~Lik() {}
        virtual double DajObim() const = 0;
        virtual double DajPovrsinu() const = 0;
        virtual void IspisiAtribute () const =0;

};

class Trougao : public Lik {
        double a, b, c;
public:
        Trougao (std::string ime, double a, double b, double c) : Lik (ime), a (a), b (b), c (c) {
                if (a < 0 || b < 0 || c < 0 )
                        throw std::domain_error ("Ilegalne duzine stranica");
                if (a + b <= c || a + c <= b || b + c <= a)
                        throw std::domain_error ("Ilegalne duzine stranica");
        }
        double DajObim() const override { return a + b + c; }
        double DajPovrsinu() const override {
                double s (DajObim() / 2);
                return std::sqrt (s * (s - a) * (s - b) * (s - c) );
        }
        void IspisiAtribute () const override {
                std::cout << naziv << std::endl;
                std::cout << "Stranice trougla su: " << a << ' ' << b << ' ' << c << std::endl;
                std::cout << "Obim kruga: " << DajObim() << std::endl;
                std::cout << "Povrsina kruga: " << DajPovrsinu() << std::endl;
        }
};

class Krug : public Lik {
        double x, y, r;
public:
        Krug (std::string ime, double x, double y, double r) : Lik (ime), x (x), y (y), r (r) {
                if (r < 0)
                        throw std::domain_error ("Ilegalan poliprecnik!");
        }
        double DajObim() const override { return 2 * r * std::acos (-1.); }
        double DajPovrsinu() const override { return r * r * std::acos (-1.); }
        void IspisiAtribute () const override {
                std::cout << naziv << std::endl;
                std::cout << "Radijus kruga: " <<  r  << "\nCentar kruga: " << x << ' ' << y << std::endl;
                std::cout << "Obim kruga: " << DajObim() << std::endl;
                std::cout << "Povrsina kruga: " << DajPovrsinu() << std::endl;
        }
};

class Pravougaonik : public Lik {
        double a, b;
public:
        double DajObim() const override { return (a+b)*2; }
        double DajPovrsinu() const override { return a*b; }
        void IspisiAtribute () const override {
                std::cout << naziv << std::endl;
                std::cout << "Stranice pravougaonika: " <<  a << ' ' << b << std::endl;
                std::cout << "Obim pravougaonika: " << DajObim() << std::endl;
                std::cout << "Povrsina pravougaonika: " << DajPovrsinu() << std::endl;
        }
};

int main()
{

        return 0;
}