C++

Forum

 
Convert periods to spaces

brycematheson (33)
I'm creating a Tic-Tac-Toe game. Well, at least the beginnings of it. Currently, I'm trying to read a game board from a file, display it to the screen, and then write the contents back to a different destination file that the user selects.

My problem is this: when reading the game board from a file, it uses "." to indicate a place in which neither user has made a move. When I display it to the screen, I need those periods to be spaces. But then when time to write it back to the destination file, I need those periods to be back there.

How would one go about doing this? I'm quite lost.

1
2
3
4
5
6
7
8
9
10
11
12
13
14
15
16
17
18
19
20
21
22
23
24
25
26
27
28
29
30
31
32
33
34
35
36
37
38
39
40
41
42
43
44
45
46
47
48
49
50
51
52
53
54
55
56
57
58
59
60
61
62
63
64
65
66
67
68
69
70
71
72
73
74
75
76
77
78
79
80
81
82
83
84
85
86
87
88
89
90
91
92
93
94
95
96
97
98
99
100
101
102
103
104
105
106
107
108
109
110
111
112
113
114
115
116
117
118
119
120
121
122
123
124
125
126
127
128
129
130
131
132
 
#include <iostream>
#include <cstdlib>
#include <fstream>
using namespace std;

void readFile(char ticTacBoard[][3]);
void writeFile(char ticTacBoard[][3]);
void display(char ticTacBoard[][3]);

/**********************************************************************
* Main: Basically a delegator. Gets others to do its' dirty work.
***********************************************************************/
int main()
{
   //Declare array
   char ticTacBoard[3][3];

   //Calling functions/pass array
   readFile(ticTacBoard);
   display(ticTacBoard);
   writeFile(ticTacBoard);

   return 0;
}


/**********************************************************************
* Displays the results to the screen.
***********************************************************************/
void display(char ticTacBoard[][3])
{
   cout << " " << ticTacBoard[0][0]  //Row 1
        << " | " << ticTacBoard[1][0]
        << " | " << ticTacBoard[2][0]
        << " " << endl

        << "---+---+---" << endl

        << " " << ticTacBoard[0][1]  //Row 2
        << " | " << ticTacBoard[1][1]
        << " | " << ticTacBoard[2][1]
        << " " << endl

        << "---+---+---" << endl

        << " " << ticTacBoard[0][2]  //Row 3
        << " | " << ticTacBoard[1][2]
        << " | " << ticTacBoard[2][2]
        << " " << endl;
}


/**********************************************************************
* Read a file into memory.
***********************************************************************/
void readFile(char ticTacBoard[][3])
{
   //Declare variable/array
   char sourceFile[256];

   //Declare file-input.
   ifstream fin;

   //Get filename from user
   cout << "Enter source filename: ";
   cin >> sourceFile;

   //Open file with error checking
   fin.open(sourceFile);
   if (fin.fail())
   {
      cout << "Input file opening failed.\n";
      exit(1);
   }

   //Read from file into array
   for (int i = 0; i < 3; i++)
   {
      for (int j = 0; j < 3; j++)
      {
         fin >> ticTacBoard[j][i];
      }
   }

   //Close the file
   fin.close();
}


/**********************************************************************
* Write a file into memory.
***********************************************************************/
void writeFile(char ticTacBoard[][3])
{
   //Delcare file-output
   ofstream fout;
   char destinationFile[256];

   //Asking for user input
   cout << "Enter destination filename: ";
   cin >> destinationFile;

   //Open destination file & error checking
   fout.open(destinationFile);
   if (fout.fail())
   {
      cout << "Output file opening failed.\n";
      exit(1);
   }
   else
      cout << "File written";

   //Writes board to file
   for (int i = 0; i < 3; i++)
   {
      for (int j = 0; j < 3; j++)
      {
         fout << ticTacBoard[j][i] << " ";

         //Makes sure it is a 3x3 grid
         if (j % 3 == 0)
         {
            fout << endl;
         }

      }

   }

   //Close file
   fout.close();
}


Any help is appreciated!
firedraco (6243)
Instead of something like:
fin >> ticTacBoard[j][i];

Just put it into a temporary character and then check it.

Same for saving, just check the character before writing it.
brycematheson (33)
I'm a little confused on what you mean. Could you be a little more specific?
ne555 (10692)
It will be better that you just stick with one convention.
Now you need "two" functions. One for fstreams and another for the console.
1
2
 
if( cell == EMPTY) 
//print the empty representation
Topic archived. No new replies allowed.