Help with classes

[Shoxin]

I am trying to teach myself C++ through the use of e-books and videos and I have a question on classes.

I am using a basic text based pokemon game as an example and I am trying to add a battle sequence.

The issue i am having is I am unable to reference my class in a new function as it seems its on an entire different scope. When I go to use it such as starter.move1 it will not recognize the class in a new function.

#include "stdafx.h"
#include <iostream>
#include <string>

using namespace std;

class pokemon
{
public:
	string name;
	int hp;
	int level;
	string move1;
	string move2;
	string move3;
	string move4;
	void attack();
	
};
void battle();
void firstpokemon();
int main()
{
	firstpokemon();
	char answer;
	cout << "Do you want to make your way to Viridian City? (y/n) ";
	cin >> answer;
	switch(answer)
	{
	case 'y': 
		battle();
		break;
	case 'n': 
		cout << endl << "You stay at proffesor oaks lab!\n";
		break;
	}	
}

void firstpokemon()
{
	pokemon starter;
	starter.hp = 10;
	starter.level = 5;
	int starternum = 0;
	do {
	cout << "Would you like to pick Charmander(1), Squirtel(2), or Bulbasaur(3): ";
	cin >> starternum;
	}while(starternum < 1 || starternum > 3);
		switch(starternum)
		{
		case 1:
			cout << "You chose charmander!\n";
			starter.name = "Charmander";
			starter.move1 = "scratch";
			starter.move2 = "leer";
			break;
		case 2:
			cout << "You chose squirtel!\n";
			starter.name = "Squirtel";
			starter.move1 = "Tackle";
			starter.move2 = "Tail Whip";
			break;
		case 3:
			cout << "You chose bulbasaur!\n";
			starter.name = "Bulbasaur";
			starter.move1 = "Tackle";
			starter.move2 = "Growl";
			break;
}
		cout << endl << endl << "Your starter pokemon is: " << starter.name << ". It is level: " << starter.level << endl;
}
void battle()
{
	cout << "A wild pidgy has appeared!\n";
	cout << "What move would you like to use\n";
}

[Peter87]

You mean the pokemon object created on line 41? Class objects follow the same scoping rules as any other type (int, char, std::string, etc.). If you declare it in one function it will not be in scope in other functions.

Consider passing the object by reference to the functions that use them, or if a function creates a new pokemon as firstpokemon() do then you could make it the return value.

[Shoxin]

I think I understand what you mean by passing it through by reference...
the issue I am having is how can I return all of those class values at once if I do that?
I use the funtion starterpokemon and in that function it declares 3 variables, how could I return all three of those
this is what I have

#include "stdafx.h"
#include <iostream>
#include <string>

using namespace std;

class pokemon
{
public:
	string name;
	int hp;
	int level;
	string move1;
	string move2;
	string move3;
	string move4;
	void attack();
	
};
pokemon firstpokemon(pokemon starter);
int main()
{
	pokemon starter;
	firstpokemon(starter);
	cout << endl << endl << "Your starter pokemon is: " << starter.name << ". It is level: " << starter.level << endl;
	char answer;
	cout << "Do you want to make your way to Viridian City? (y/n) ";
	cin >> answer;
	switch(answer)
	{
	case 'y': 
		break;
	case 'n': 
		cout << endl << "You stay at proffesor oaks lab!\n";
		break;
	}	
}
pokemon firstpokemon(pokemon starter)
{
	starter.hp = 10;
	starter.level = 5;
	int starternum = 0;
	do {
	cout << "Would you like to pick Charmander(1), Squirtel(2), or Bulbasaur(3): ";
	cin >> starternum;
	}while(starternum < 1 || starternum > 3);
		switch(starternum)
		{
		case 1:
			cout << "You chose charmander!\n";
			starter.name = "Charmander";
			starter.move1 = "scratch";
			starter.move2 = "leer";
			break;
		case 2:
			cout << "You chose squirtel!\n";
			starter.name = "Squirtel";
			starter.move1 = "Tackle";
			starter.move2 = "Tail Whip";
			break;
		case 3:
			cout << "You chose bulbasaur!\n";
			starter.name = "Bulbasaur";
			starter.move1 = "Tackle";
			starter.move2 = "Growl";
			break;
		}
		return starter;
}

This is my output:

Would you like to pick Charmander(1), Squirtel(2), or Bulbasaur(3): 1
You chose charmander!


Your starter pokemon is: . It is level: -858993460
Do you want to make your way to Viridian City? (y/n) n

You stay at proffesor oaks lab!
Press any key to continue . . .

I am not sure how I can return the level and name.

[SorinAlex]

Either :

#include "stdafx.h"
#include <iostream>
#include <string>

using namespace std;

class pokemon
{
public:
	string name;
	int hp;
	int level;
	string move1;
	string move2;
	string move3;
	string move4;
	void attack();

};
pokemon firstpokemon();
int main()
{
	pokemon starter;
	starter=firstpokemon();
	cout << endl << endl << "Your starter pokemon is: " << starter.name << ". It is level: " << starter.level << endl;
	char answer;
	cout << "Do you want to make your way to Viridian City? (y/n) ";
	cin >> answer;
	switch(answer)
	{
	case 'y':
		break;
	case 'n':
		cout << endl << "You stay at proffesor oaks lab!\n";
		break;
	}
}
pokemon firstpokemon()
{
    pokemon starter;
	starter.hp = 10;
	starter.level = 5;
	int starternum = 0;
	do {
	cout << "Would you like to pick Charmander(1), Squirtel(2), or Bulbasaur(3): ";
	cin >> starternum;
	}while(starternum < 1 || starternum > 3);
		switch(starternum)
		{
		case 1:
			cout << "You chose charmander!\n";
			starter.name = "Charmander";
			starter.move1 = "scratch";
			starter.move2 = "leer";
			break;
		case 2:
			cout << "You chose squirtel!\n";
			starter.name = "Squirtel";
			starter.move1 = "Tackle";
			starter.move2 = "Tail Whip";
			break;
		case 3:
			cout << "You chose bulbasaur!\n";
			starter.name = "Bulbasaur";
			starter.move1 = "Tackle";
			starter.move2 = "Growl";
			break;
		}
		return starter;
}

or

#include "stdafx.h"
#include <iostream>
#include <string>

using namespace std;

class pokemon
{
public:
	string name;
	int hp;
	int level;
	string move1;
	string move2;
	string move3;
	string move4;
	void attack();

};
void firstpokemon(pokemon &starter);
int main()
{
	pokemon starter;
	firstpokemon(starter);
	cout << endl << endl << "Your starter pokemon is: " << starter.name << ". It is level: " << starter.level << endl;
	char answer;
	cout << "Do you want to make your way to Viridian City? (y/n) ";
	cin >> answer;
	switch(answer)
	{
	case 'y':
		break;
	case 'n':
		cout << endl << "You stay at proffesor oaks lab!\n";
		break;
	}
}
void firstpokemon(pokemon &starter)
{
	starter.hp = 10;
	starter.level = 5;
	int starternum = 0;
	do {
	cout << "Would you like to pick Charmander(1), Squirtel(2), or Bulbasaur(3): ";
	cin >> starternum;
	}while(starternum < 1 || starternum > 3);
		switch(starternum)
		{
		case 1:
			cout << "You chose charmander!\n";
			starter.name = "Charmander";
			starter.move1 = "scratch";
			starter.move2 = "leer";
			break;
		case 2:
			cout << "You chose squirtel!\n";
			starter.name = "Squirtel";
			starter.move1 = "Tackle";
			starter.move2 = "Tail Whip";
			break;
		case 3:
			cout << "You chose bulbasaur!\n";
			starter.name = "Bulbasaur";
			starter.move1 = "Tackle";
			starter.move2 = "Growl";
			break;
		}
}