Thread: I need work

I just finnshed my C book and I don't know what to do with everything I know! Can someone plz find something for me to do?

Make a cool (not simple and lame) tic tac toe game.

I can't I don't know how to use gfx....

:\ ... I don't know how I'm going to do that...

The AI is stupid, the coordinate system is counter intuitive, and it's in C++, but it should give you a decent idea.

Code:

#include <iostream>
using namespace std;

char matrix[3][3];  /* the tic tac toe matrix */

char check(void);
void init_matrix(void);
void get_player_move(void);
void get_computer_move(void);
void disp_matrix(void);

int main()
{
  char done;

  cout << "This is the game of Tic Tac Toe" << endl;
  cout << "You will be playing against the computer" << endl;

  done =  ' ';
  init_matrix();
  
  do{
    
	disp_matrix();
    
	get_player_move();
    
	done = check(); /* see if winner */
    
	if(done!= ' ') 
		break; /* winner!*/
    
	get_computer_move();
    
	done = check(); /* see if winner */

	system("cls");
  
  } while(done== ' ');
  

  system("cls");

  disp_matrix();
  
  if(done=='X') 
	  cout << "You won!" << endl;

  else 
	  cout << "I won!!!!" << endl;

  

  return 0;
}

/* Initialize the matrix. */
void init_matrix(void)
{
  int i, j;

  for(i=0; i<3; i++)
    for(j=0; j<3; j++) matrix[i][j] =  ' ';
}

/* Get a player's move. */
void get_player_move(void)
{
  int x, y;

  cout << "Enter X,Y coordinates for your move: ";
  cin  >> x >> y;

  x--; y--;

  if(matrix[x][y]!= ' '){
    cout << "Invalid move, try again." << endl;

    get_player_move();
  }
  else matrix[x][y] = 'X';
}

/* Get a move from the computer. */
void get_computer_move(void)
{
  int i, j;
  for(i=0; i<3; i++){
    for(j=0; j<3; j++)
      if(matrix[i][j]==' ') break;
    if(matrix[i][j]==' ') break;
  }

  if(i*j==9)  
  {
    cout << "draw" << endl;
    exit(EXIT_SUCCESS);
  }
  else
    matrix[i][j] = 'O';
}

/* Display the matrix on the screen. */
void disp_matrix(void)
{
  int t;

  for(t=0; t<3; t++) {
    printf(" %c | %c | %c ",matrix[t][0],
            matrix[t][1], matrix [t][2]);
    
	if(t!=2) 
		printf("\n---|---|---\n");
  }
  cout << endl;
}

/* See if there is a winner. */
char check(void)
{
  int i;

  for(i=0; i<3; i++)  /* check rows */
    if(matrix[i][0]==matrix[i][1] &&
       matrix[i][0]==matrix[i][2]) 
	   
	   return matrix[i][0];

  for(i=0; i<3; i++)  /* check columns */
    if(matrix[0][i]==matrix[1][i] &&
       matrix[0][i]==matrix[2][i]) 
	   
	   return matrix[0][i];

  /* test diagonals */
  if(matrix[0][0]==matrix[1][1] &&
     matrix[1][1]==matrix[2][2])
       
	   return matrix[0][0];

  if(matrix[0][2]==matrix[1][1] &&
     matrix[1][1]==matrix[2][0])
       
	   return matrix[0][2];

  return ' ';
}

Originally posted by volk
... and it's in C++...

This is an opinion:
Is it C++? Just because you have a couple cout and cin statements does not make it a C++ program. It looks like standard C to me.

Make a class, redesign your functions into methods of that class, and you'll be closer.

Walt

Originally posted by quzah
cout and cin are classes. That makes it C++. There you have your answer. Furthermore, "<<" and ">>" are over ridden operators. Again, C++ code.

I can accept that definition if you want to be a purist about it. I just question the 'intent' that simply changing a printf into cout converts a program into C++ code. It only requires a C++ compiler but the code written is still C.

My definition of C++ is a little different. If only I/O is C++ and there are no other classes/methods used (either user-defined or other language-defined) I wouldn't count it as C++, as the above code is written.

In other words, if you teach your cat to bark (output) and eat dog food (input) that doesn't make him a dog. It would have to chase cars, chew bones, and have puppies before I'd call it Rover ;-)

Just an opinion, take it or leave it...
Walt

YAY! The code works! No errors(on my compiler it usally gets errors on code I get off the internet), now it's time to see HOW it works...

...could someone make a C version?

What worng with check()? I don't see anything... and yes, I will try to convert it(C++ is really close to C!)