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c++conways-game-of-life

Reading from file.txt to array of strings and using it to play Conway's game of Life


I am coding a Conway's Game of Life.My task is reading from file.txt to array of strings.And then using this array as the input array of the game. I have written a code about it. But it is full of error. I don't know what is the correct way to do this.

#include <iostream>
#include <string>
#include <stdio.h>
#include <stdlib.h>
#include <time.h>
#include <fstream>

    using namespace std;
namespace gamearray {
  int main() 


    ifstream file_("file.txt");
    if(file.is_open())
    {
        string myArray[10];

        for(int i = 0; i < 10; ++i)
        {
        for(int i = 0; i < 10; i++)

            file >> array1[j][i];
        }
    }
return 0; 
}

void copy(int array1[10][10], int array2[10][10])
{
  for(int j = 0; j < 10; j++)
  {
        for(int i = 0; i < 10; i++)
            array2[j][i] = array1[j][i];
    }
}


void life(int array[10][10], char choice)
{

  int temp[10][10];
  copy(array, temp);
    for(int j = 0; j < 10; j++)
    {
        for(int i = 0; i < 10; i++)
        {
            if(choice == 'm')
            {

                int count = 0;
                count = array[j-1][i] +
                    array[j-1][i-1] +
                    array[j][i-1] +
                    array[j+1][i-1] +
                    array[j+1][i] +
                    array[j+1][i+1] +
                    array[j][i+1] +
                    array[j-1][i+1];

        if(count < 2 || count > 3)
                    temp[j][i] = 0;

        if(count == 2)
                    temp[j][i] = array[j][i];

        if(count == 3)
                    temp[j][i] = 1;
            }


        }
    }

  copy(temp, array);
}


bool compare(int array1[10][10], int array2[10][10])
{
    int count = 0;
    for(int j = 0; j < 10; j++)
    {
        for(int i = 0; i < 10; i++)
        {
            if(array1[j][i]==array2[j][i])
                count++;
        }
    }

    if(count == 10*10)
      return true;
    else
      return false;
}


void print(int array[10][10])
{
    for(int j = 0; j < 10; j++)
    {
        for(int i = 0; i < 10; i++)
        {
            if(array[j][i] == 1)
                cout << '*';
            else
                cout << ' ';
        }
        cout << endl;
    }
}


int main()
{gamearray::main(); 

int gen0[10][10];
int todo[10][10];
int backup[10][10];
char neighborhood;
char again;
char cont;
bool comparison;


{do
    {

  do
        {
    cout << "Which neighborhood would you like to use (m): ";
          cin >> neighborhood;
        }while(neighborhood != 'm');

  system("CLS");
  int i = 0;

  do
        {

            srand(time(NULL));

            for(int j = 0; j < 10; j++)
            {
                for (int i = 0; i < 10; i++)
                    gen0[j][i] = rand() % 2;
            }



    if(i == 0)
                copy(gen0, todo);
            copy(todo, backup);
            print(todo);
          life(todo, neighborhood);
          i++;


    system("sleep .5");

    if(i % 10 == 1 && i != 1)
    {
      cout << endl;

      do
      {
        cout << "Would you like to continue this simulation? (y/n): ";
        cin >> cont;
      }while(cont != 'y' && cont != 'n');
      if(cont == 'n')
        break;
    }

    comparison = compare(todo, backup);
    if(comparison == false)
      system("CLS");
    if(comparison == true)
      cout << endl;
        }while(comparison == false);
  do
     {
       cout << "Would you like to run another simulation? (y/n): ";
          cin >> again;
     }while(again != 'y' && again != 'n');
    }while(again == 'y');

    return 0;
    }
}

Solution

  • aftert main you are missing { in first and second loop you have i loop twice

    why do you need to copy ?

    you can use this function fscanf() to read your file

    e.g.

    File= fopen(FileName, "r");
                 if( File == NULL ){
                printf("Impossible to open  file %s ! \n",FileName);
            }
    
    if( File != NULL)
    {
       char text[255];
       while(!feof(File))
       {
          fscanf(File,"%s\n",&text);
          ....
       }
    }