Classes

#ifndef PIZZA_H
#define PIZZA_H

#include <vector>
#include <string>

using namespace std;

class Pizza {

	public:
		// constructor
		Pizza(string name, int cost, int diameter);
		
		// Member functions
		void addTopping(string topping);
		
		// Getters
		int getCost() const;
		int getDiameter() const;
		
		// Printout
		void printToppings() const;
		void printPizza() const;
	
	private:
	
		string name;
		int cost = 0;
		int diameter = 0;
		vector<string> toppings{};

};

#endif

#include <iostream>
#include "Pizza.h"

using namespace std;

// constructor
Pizza::Pizza(string name, int cost, int diameter) {
	this->name = name;
	this->cost = cost;
	this->diameter = diameter;
	this->toppings.push_back("Cheese");
}

// Member functions
void Pizza::addTopping(string topping) {
	bool toppingAlreadyIncluded = false;

	for (auto t : toppings)
	{
		if (topping == t)
		{
		toppingAlreadyIncluded = true;
		cout << "Error: " << topping << " is already on this pizza! (" << name << ")" << endl;
		}
	}
	if (toppingAlreadyIncluded)
	{
		// do not add the topping
	}
	else {
	toppings.push_back(topping);
	}

}

// Getters
int Pizza::getCost() const
{
	return cost;
	}

int Pizza::getDiameter() const
{
	return diameter;
}

// Printout
void Pizza::printToppings() const {
	for (auto t : toppings) {
	cout << '\t' << t << endl;
	}
}

void Pizza::printPizza() const {
	cout << "Name: " << name << endl;
	cout << "Diameter: " << diameter << "cm"<< endl;
	cout << "Cost: €" << cost << endl;
	cout << "Toppings: " << endl;
	printToppings();
	cout << endl;
}

// Project 06-02
// Name: A Pizze Class

#include <iostream>
#include "Pizza.h"
using namespace std;

int main() {

	Pizza cheesePizza("Cheese pizza", 25, 6);
	
	Pizza pepperoniPizza("Pepperoni pizza", 33, 11);
	pepperoniPizza.addTopping("pepperoni");
	
	Pizza theSpecialPizza("The Special Pizza", 35, 15);
	theSpecialPizza.addTopping("pepperoni");
	theSpecialPizza.addTopping("black olives");
	theSpecialPizza.addTopping("onions");
	theSpecialPizza.addTopping("mushroom");
	theSpecialPizza.addTopping("mushroom");
	
	cheesePizza.printPizza();
	pepperoniPizza.printPizza();
	theSpecialPizza.printPizza();

    return 0;
}