#include <iostream>
#include <ctype.h>
#include <cmath>
#include <fstream>
#include <string>
using namespace std;

void login();
void signup();
int prompt();
int filter(char command[]);

int main()
{
	switch ( prompt() )
	{
	case 1:
		login();
		break;
	case 2:
		signup();
		break;
	}
}
int prompt()
{
	char command[12];
	cout << " _________________________________ " << endl;
	cout << "|                                 |" << endl;
	cout << "|      Welcome to our game!       |" << endl;
	cout << "|     ----------------------      |" << endl;
	cout << "|    What would you like to do?   |" << endl;
	cout << "|     ----------------------      |" << endl;
	cout << "|_________________________________|" << endl;
	cout << endl;

	while (true)
	{
		cout << ">> ";
		cin >> command;
		cin.ignore(100, '\n');
		cout << endl;

		if (filter(command) == 0)
		{
			cout << "\nERROR: Command wasn't recognized. Try again?" << endl;
			continue;
		}
		else
			break;
	}
	return filter(command);
}
int filter(char command[])
{
	if ( _stricmp("play",command) == 0  || _stricmp("start",command) == 0 || _stricmp("login",command) == 0)
		return 1;
	else if ( _stricmp("new",command) == 0 || _stricmp("create",command) == 0 || _stricmp("make",command) == 0 )
		return 2;
	else
		return 0;
}
void login()
{
// ...
}
void signup()
{
	ofstream loginData("data.txt", ios::app);
	if (loginData.fail())
	{
		cout << "ERROR: Login data was not found." << endl;
		exit(-1);
	}
	string username, password;

	cout << "Desired Username:  ";
	getline(cin, username);

	cout << "Desired Password:  ";
	getline(cin, password);

	loginData << username << endl;
	loginData << password << endl;
}