UserName Files

[lkegley]

Hi All,

I've created a game that can save someone's game and then re-open that saved game for the next time you run the game. However, I'm trying to figure out how you would let the user input a username and save the file according to the username. It would need to be able to handle multiple users. The code I have for the input / output process is shown:

writing to the file:

cout << "Would you like to save the game? (Y/N)" << endl;
                        cin >> YorN;

                        if (YorN == 'Y' || YorN == 'y')
                        {
                                cout << "Please enter a username: "<< endl;
                                cin >> Username;

                                OutData.open("username.txt");

                                if (!OutData)
                                {
                                        cerr << "Your file could not be saved!" << endl;
                                }

                                else
                                {
                                        OutData << Rounds;

                                        for (int i = 0; i< ROWS; i++)
                                                for (int j=0; j<COLUMNS; j++)
                                                        OutData << Board[i][j];

                                        for (int k = 0; k < FIRSTLENGTH + 1; k++)
                                                OutData << hitcount[k] << " ";

                                        OutData.close();

                                }

reading the saved file:

if (!Din)
        {
                Clearboard(Board);
                HitCounter(Board, hitcount);
        }

        else
        {
                cout << "Would you like to use your saved game? (Y/N) " << endl;

                 cin >> UseSave;

                if (UseSave == 'Y' || UseSave == 'y')
                {
                        cout << "Please enter your username exactly like you did when you saved it!" << endl;
                        cin >> Username;

                        Din >> Rounds;

                        for (int i = 0; i< ROWS; i++)
                                for (int j=0; j<COLUMNS; j++)
                                        Din >> Board[i][j];

                        for (int k = 0; k < FIRSTLENGTH + 1; k++)
                                Din >> hitcount[k];

                }
                else if (UseSave == 'N' || UseSave == 'n')
                {
                        Clearboard(Board);
                        HitCounter(Board, hitcount);
                }
                else
                {
                        cout <<"Since that was an invalid input, I assume you want to begin again! " << endl;
                        Clearboard(Board);
                        HitCounter(Board, hitcount);
                }
        }

        Din.close();

Thank you!

[Disch]

You don't have to use string literals with fstream::open().

IE, you're doing this:

OutData.open("username.txt");

Since you're giving it "username.txt", it will always open a filename called "username.txt".

If you want to have a different file for each user, the files must have different names:

string username;

 // <<get user name from user here>>

username += ".txt";  // add .txt to whatever the user's name is

OutData.open( username.c_str() );  // then use that string to open the file 

So now if the user inputs "Dave", it will open "Dave.txt". And so on.

[ljrobison]

Nice I was going to tell him to use:

string username;

OutData.open( username.c_str() );

but I never thought of using:

username += ".txt";

Thats extremely useful =) Thanks haha.