Question

how can I get my program to read one of 4 text files (chosen/ inputted by user, game1.txt, game2, game3, or game4.txt). and place its information into variables, one of which is an array. I sort of understand this, but I don't know how to make my program know which parts of the textfile go into which variables.

my 4 textfiles are in the format: the list of e4-bc need to be entered into my array.

B
35
e4 e5 Bc4 Nc6 Nf3 Bc5 c3 Nf6
h3 Nxe4 d4 d5 Bb3 exd4 Nbd2 Nxf2
e2+ Qe7 Qxe7+ Nxe7 Kxf2 dxc3+ Kf1 Nf5
bxc3 Ng3+ Ke1 Nxh1 Bxd5 O-O g4 Nf2
Rb1 c6 Bc

my variables that those need to be inputted into are in this abstract data type class:

class Game

{

public:

char outcome; //(whether black or white team won)

int numMoves;

string arrayMoves;}

Answer 1

Given below is the code for the question. Please do rate the answer if it helped. Thank you.

#include <iostream>
#include <fstream>
#include <iomanip>
using namespace std;

class Game{
   public:
       char outcome;
       int numMoves;
       string moves[200];
       bool loadFromFile(string filename){
           ifstream in(filename.c_str());
           if(in.fail()){
               cout << "ERROR: could not load file " << filename << endl;
               return false;
           }
          
           in >> outcome;
           in >> numMoves;
           for(int i = 0; i < numMoves; i++)
               in >> moves[i];
           in.close();
           return true;
       }
      
       void print(){
           if(outcome == 'B')
               cout << "Black wins" << endl;
           else
               cout << "White wins" << endl;
          
           cout << "No. of moves: " << numMoves << endl;
           for(int i = 0; i < numMoves; i++){
               if(i % 8 == 0) //print 8 moves per line
                   cout << endl;
               cout << setw(8) << moves[i] ;
           }
       }
          
};

int main(){
   string filename;
  
   cout << "Enter game filename: ";
   cin >> filename;
  
   Game game;
   if(game.loadFromFile(filename))
   {
       cout << "Loaded game from file " << filename << endl;
       game.print();
   }
   return 0;
}