Нужна программа учета диких животных

#include <iostream>
#include <string>
#include <iomanip>
using namespace std;
 
struct Animal{
string name;
string species;
string classA;
string feed;
};
 
int main()
{
    Animal animal1;
   animal1.name = "Pig";
   animal1.species = "bla-bla-bla";
   animal1.classA = "fat pigs";
   animal1.feed = "corn";
 
   cout << "Name: " << animal1.name << endl
        << "Species: " << animal1.species << endl
        << "Class: " << animal1.classA << endl
        << "Feed: " << animal1.feed << endl
        << endl;
 
}

Animal animal1;
   animal1.name = "Pig";
   animal1.species = "bla-bla-bla";
   animal1.classA = "fat pigs";
   animal1.feed = "corn";

int var;
cout << "Enter 1 - for new animal\n2 - for editing current animal\n-1 - for quit\n";
cin >> var;

switch(var)
{
case 1:
функция создания животного;
break;
case 2:
функция редактирования животного;
break;
case -1:
exit(1);
break;
default:
cout <<"Invalid character" << endl;
exit(1);
break;
}