I thought i would share this with the community wrote most of it in school but the ai i wrote at home enjoy!

Comments
Nice, though he's right. Too many if-else statements.
Thanks for sharing
#include <iostream>
#include <stdlib.h>
#include <stdio.h>
#include <time.h>

using namespace std;

bool isP1;
enum results{xWins, oWins, draw, goOn};

void compMove(const char board[3][3]);
void drawBoard(const char board[3][3]);
void getMove(char board[3][3]);
void getMove2(char board[3][3]);
results getResults(const char board[3][3]);
void displayResults(results result, const char board[3][3]);

int main()
{
  
  srand ( time(NULL) );
  results result;
  char ans;
  int move;
  int cpMv;
  int numPlyrs;
    do
    {
  system("cls");
  char board[3][3] = {{' ', ' ', ' '},
		      {' ', ' ', ' '},
		      {' ', ' ', ' '}};
  do
  {
	cout <<"Would you like to play 1 or 2 player?";
	cin >> numPlyrs;
  }while(numPlyrs != 1 && numPlyrs != 2);
  
  do
  {
    if(numPlyrs == 1)
    {
        isP1 = true;
        break;
    }
	cout <<"Would you like to be x or o?\n";
	cin >> ans;
  if(ans == 'x')
	isP1 = true;
  else if(ans == 'o')
	isP1 = false;
  else
  {
	cout <<"That is not a valid choice\n";
	ans = 'r';
  }
  }while(ans == 'r');
  
  if(numPlyrs == 1)
  {
  
  do
    {
		getMove2(board);
		drawBoard(board);
		result = getResults(board);
		displayResults(result,board);
	}while(result == goOn);
   }
  else if(numPlyrs == 2)
  {
  do
    {
      getMove(board);
      drawBoard(board);
      result = getResults(board);
      displayResults(result,board);
    }while(result == goOn);
   }
    cout <<"Play again? (y/n)\n";
    cin >>ans;
    }while(ans == 'y' || ans == 'Y');
  
  return 0;  
}

void drawBoard(const char board[3][3])
{
  cout << board[0][0] << " | " << board[0][1] << " | " << board[0][2] << endl;
  cout << "--+---+--\n";
  cout << board[1][0] << " | " << board[1][1] << " | " << board[1][2] << endl;
  cout << "--+---+--\n";
  cout << board[2][0] << " | " << board[2][1] << " | " << board[2][2] << endl;
}   

void getMove(char board[3][3])
{
  int move;
  cout << "Where would you like to move?\n";
  cout << "7 | 8 | 9\n";
  cout << "--+---+--\n";
  cout << "4 | 5 | 6\n";
  cout << "--+---+--\n";
  cout << "1 | 2 | 3\n";
  cin >> move;
  system("cls");

  if (move == 7)
    {
      if (board[0][0] == 'o' || board[0][0] == 'x')
	{
	  cout <<"Someone is on this spot already\n";
	}
      else
	{
	  if (isP1)
	    {
	      board[0][0] = 'x';
	      isP1 = !isP1;
	    }
	  else
	    {
	      board[0][0] = 'o';
	      isP1 = !isP1;
		}
	}
    }
  else if (move == 8)
    {
      if (board[0][1] == 'o' || board[0][1] == 'x')
	{
	  cout <<"Someone is on this spot already\n";
	}
      else
	{
	  if (isP1)
	    {
	      board[0][1] = 'x';
	      isP1 = !isP1;
	    }
	  else
	    {
	      board[0][1] = 'o';
	      isP1 = !isP1;
		}
	}
    }
  else if (move == 9)
    {
      if (board[0][2] == 'o' || board[0][2] == 'x')
	{
	  cout <<"Someone is on this spot already\n";
	}
      else
	{
	  if (isP1)
	    {
	      board[0][2] = 'x';
	      isP1 = !isP1;
	    }
	  else
	    {
	      board[0][2] = 'o';
	      isP1 = !isP1;
		}
	}
    }
  else if (move == 4)
    {
      if (board[1][0] == 'o' || board[1][0] == 'x')
	{
	  cout <<"Someone is on this spot already\n";
	}
      else
	{
	  if (isP1)
	    {
	      board[1][0] = 'x';
	      isP1 = !isP1;
	    }
	  else
	    {
	      board[1][0] = 'o';
	      isP1 = !isP1;
		}
	}
    }
  else if (move == 5)
    {
      if (board[1][1] == 'o' || board[1][1] == 'x')
	{
	  cout <<"Someone is on this spot already\n";
	}
      else
	{
	  if (isP1)
	    {
	      board[1][1] = 'x';
	      isP1 = !isP1;
	    }
	  else
	    {
	      board[1][1] = 'o';
	      isP1 = !isP1;
		}
	}
    }
  else if (move == 6)
    {
      if (board[1][2] == 'o' || board[1][2] == 'x')
	{
	  cout <<"Someone is on this spot already\n";
	}
      else
	{
	  if (isP1)
	    {
	      board[1][2] = 'x';
	      isP1 = !isP1;
	    }
	  else
	    {
	      board[1][2] = 'o';
	      isP1 = !isP1;
		}
	}
    }
  else if (move == 1)
    {
      if (board[2][0] == 'o' || board[2][0] == 'x')
	{
	  cout <<"Someone is on this spot already\n";
	}
      else
	{
	  if (isP1)
	    {
	      board[2][0] = 'x';
	      isP1 = !isP1;
	    }
	  else
	    {
	      board[2][0] = 'o';
	      isP1 = !isP1;
		}
	}
    }
  else if (move == 1)
    {
      if (board[2][0] == 'o' || board[2][0] == 'x')
	{
	  cout <<"Someone is on this spot already\n";
	}
      else
	{
	  if (isP1)
	    {
	      board[2][0] = 'x';
	      isP1 = !isP1;
	    }
	  else
	    {
	      board[2][0] = 'o';
	      isP1 = !isP1;
		}
	}
    }
 else if (move == 2)
    {
      if (board[2][1] == 'o' || board[2][1] == 'x')
	{
	  cout <<"Someone is on this spot already\n";
	}
      else
	{
	  if (isP1)
	    {
	      board[2][1] = 'x';
	      isP1 = !isP1;
	    }
	  else
	    {
	      board[2][1] = 'o';
	      isP1 = !isP1;
		}
	}
    }
 else if (move == 3)
    {
      if (board[2][2] == 'o' || board[2][2] == 'x')
	{
	  cout <<"Someone is on this spot already\n";
	}
      else
	{
	  if (isP1)
	    {
	      board[2][2] = 'x';
	      isP1 = !isP1;
	    }
	  else
	    {
	      board[2][2] = 'o';
	      isP1 = !isP1;
		}
	}
    }
}
		  
	      
void getMove2(char board[3][3])
{
  int move;
  
  if(isP1)
  {
  cout << "Where would you like to move?\n";
  cout << "7 | 8 | 9\n";
  cout << "--+---+--\n";
  cout << "4 | 5 | 6\n";
  cout << "--+---+--\n";
  cout << "1 | 2 | 3\n";
  cin >> move;
  }
  
  else if(!isP1)
  { 
    if((board[2][0] == 'x' && board[1][0] == 'x')
        ||(board[2][2] == 'x' && board[1][1] == 'x')
        ||(board[0][1] == 'x' && board[0][2] == 'x'))
        if(board[0][0] != 'x' && board[0][0] != 'o')
            move = 7;
        else
            move = rand() % 9 + 1;
            
    else if((board[0][0] == 'x' && board[0][2] == 'x')
            ||(board[1][1] == 'x' && board[2][1] == 'x'))
        if(board[0][1] != 'x' && board[0][1] != 'o')
            move = 8; 
        else
            move = rand() % 9 + 1;  
    
    else  if((board[0][0] == 'x' && board[0][1] == 'x')
            ||(board[2][0] == 'x' && board[1][1] == 'x')
            ||(board[2][2] == 'x' && board[1][2] == 'x'))
        if(board[0][2] != 'x' && board[0][2] != 'o')
            move = 9;
        else
            move = rand() % 9 + 1;  
        
    else if((board[1][1] == 'x' && board[1][2] == 'x')
            ||(board[0][0] == 'x' && board[2][0] == 'x'))
        if(board[1][0] != 'x' && board[1][0] != 'o')
            move = 4;
        else
            move = rand() % 9 + 1;  
        
    else if((board[0][0] == 'x' && board[2][2] == 'x')
            ||(board[1][0] == 'x' && board[1][2] == 'x')
            ||(board[2][0] == 'x' && board[0][2] == 'x')
            ||(board[2][1] == 'x' && board[0][1] == 'x'))
        if(board[1][1] != 'x' && board[1][1] != 'o')
            move = 5;
        else
            move = rand() % 9 + 1;  
        
    else if((board[1][0] == 'x' && board[1][1] == 'x')
            ||(board[0][2] == 'x' && board[2][2] == 'x'))
        if(board[1][2] != 'x' && board[1][2] != 'o')
            move = 6;
        else
            move = rand() % 9 + 1;  
        
    else if((board[0][0] == 'x' && board[1][0] == 'x')
           ||(board[0][2] == 'x' && board[1][1] == 'x')
           ||(board[2][1] == 'x' && board[2][2] == 'x'))
        if(board[2][0] != 'x' && board[2][0] != 'o')
            move = 1;
        else
            move = rand() % 9 + 1;  
        
    else if((board[0][1] == 'x' && board[1][1] == 'x')
            ||(board[2][0] == 'x' && board[2][2] == 'x'))
        if(board[2][1] != 'x' && board[2][1] != 'o')
            move = 2;
        else
            move = rand() % 9 + 1;  
        
    else if((board[0][2] == 'x' && board[1][2] == 'x')
            ||(board[0][0] == 'x' && board[1][1] == 'x')
            ||(board[2][0] == 'x' && board[2][1] == 'x'))
        if(board[2][2] != 'x' && board[2][2] != 'o')
            move = 3;
        else
            move = rand() % 9 + 1;    
            
    if((board[2][0] == 'o' && board[1][0])
        ||(board[2][2] == 'o' && board[1][1] == 'o')
        ||(board[0][1] == 'o' && board[0][2] == 'o'))
        if(board[0][0] != 'x' && board[0][0] != 'o')
            move = 7;
        else
            move = rand() % 9 + 1;
            
    else if((board[0][0] == 'o' && board[0][2] == 'o')
            ||(board[1][1] == 'o' && board[2][1] == 'o'))
        if(board[0][1] != 'x' && board[0][1] != 'o')
            move = 8; 
        else
            move = rand() % 9 + 1;  
    
    else  if((board[0][0] == 'o' && board[0][1] == 'o')
            ||(board[2][0] == 'o' && board[1][1] == 'o')
            ||(board[2][2] == 'o' && board[1][2] == 'o'))
        if(board[0][2] != 'x' && board[0][2] != 'o')
            move = 9;
        else
            move = rand() % 9 + 1;  
        
    else if((board[1][1] == 'o' && board[1][2] == 'o')
            ||(board[0][0] == 'o' && board[2][0] == 'o'))
        if(board[1][0] != 'x' && board[1][0] != 'o')
            move = 4;
        else
            move = rand() % 9 + 1;  
        
    else if((board[0][0] == 'o' && board[2][2] == 'o')
            ||(board[1][0] == 'o' && board[1][2] == 'o')
            ||(board[2][0] == 'o' && board[0][2] == 'o')
            ||(board[2][1] == 'o' && board[0][1] == 'o'))
        if(board[1][1] != 'x' && board[1][1] != 'o')
            move = 5;
        else
            move = rand() % 9 + 1;  
        
    else if((board[1][0] == 'o' && board[1][1] == 'o')
            ||(board[0][2] == 'o' && board[2][2] == 'o'))
        if(board[1][2] != 'x' && board[1][2] != 'o')
            move = 6;
        else
            move = rand() % 9 + 1;  
        
    else if((board[0][0] == 'o' && board[1][0] == 'o')
           ||(board[0][2] == 'o' && board[1][1] == 'o')
           ||(board[2][1] == 'o' && board[2][2] == 'o'))
        if(board[2][0] != 'x' && board[2][0] != 'o')
            move = 1;
        else
            move = rand() % 9 + 1;  
        
    else if((board[0][1] == 'o' && board[1][1] == 'o')
            ||(board[2][0] == 'o' && board[2][2] == 'o'))
        if(board[2][1] != 'x' && board[2][1] != 'o')
            move = 2;
        else
            move = rand() % 9 + 1;  
        
    else if((board[0][2] == 'o' && board[1][2] == 'o')
            ||(board[0][0] == 'o' && board[1][1] == 'o')
            ||(board[2][0] == 'o' && board[2][1] == 'o'))
        if(board[2][2] != 'x' && board[2][2] != 'o')
            move = 3;
        else
            move = rand() % 9 + 1;           
     
    else
    {
        move = rand() % 9 + 1;
    }
}
  system("cls");
  
  if (move == 7)
    {
      if (board[0][0] == 'o' || board[0][0] == 'x')
	{
	  cout <<"Someone is on this spot already\n";
	}
      else
	{
	  if (isP1)
	    {
	      board[0][0] = 'x';
	      isP1 = !isP1;
	    }
	  else
	    {
	      board[0][0] = 'o';
	      isP1 = !isP1;
		}
	}
    }
  else if (move == 8)
    {
      if (board[0][1] == 'o' || board[0][1] == 'x')
	{
	  cout <<"Someone is on this spot already\n";
	}
      else
	{
	  if (isP1)
	    {
	      board[0][1] = 'x';
	      isP1 = !isP1;
	    }
	  else
	    {
	      board[0][1] = 'o';
	      isP1 = !isP1;
		}
	}
    }
  else if (move == 9)
    {
      if (board[0][2] == 'o' || board[0][2] == 'x')
	{
	  cout <<"Someone is on this spot already\n";
	}
      else
	{
	  if (isP1)
	    {
	      board[0][2] = 'x';
	      isP1 = !isP1;
	    }
	  else
	    {
	      board[0][2] = 'o';
	      isP1 = !isP1;
		}
	}
    }
  else if (move == 4)
    {
      if (board[1][0] == 'o' || board[1][0] == 'x')
	{
	  cout <<"Someone is on this spot already\n";
	}
      else
	{
	  if (isP1)
	    {
	      board[1][0] = 'x';
	      isP1 = !isP1;
	    }
	  else
	    {
	      board[1][0] = 'o';
	      isP1 = !isP1;
		}
	}
    }
  else if (move == 5)
    {
      if (board[1][1] == 'o' || board[1][1] == 'x')
	{
	  cout <<"Someone is on this spot already\n";
	}
      else
	{
	  if (isP1)
	    {
	      board[1][1] = 'x';
	      isP1 = !isP1;
	    }
	  else
	    {
	      board[1][1] = 'o';
	      isP1 = !isP1;
		}
	}
    }
  else if (move == 6)
    {
      if (board[1][2] == 'o' || board[1][2] == 'x')
	{
	  cout <<"Someone is on this spot already\n";
	}
      else
	{
	  if (isP1)
	    {
	      board[1][2] = 'x';
	      isP1 = !isP1;
	    }
	  else
	    {
	      board[1][2] = 'o';
	      isP1 = !isP1;
		}
	}
    }
  else if (move == 1)
    {
      if (board[2][0] == 'o' || board[2][0] == 'x')
	{
	  cout <<"Someone is on this spot already\n";
	}
      else
	{
	  if (isP1)
	    {
	      board[2][0] = 'x';
	      isP1 = !isP1;
	    }
	  else
	    {
	      board[2][0] = 'o';
	      isP1 = !isP1;
		}
	}
    }
  else if (move == 1)
    {
      if (board[2][0] == 'o' || board[2][0] == 'x')
	{
	  cout <<"Someone is on this spot already\n";
	}
      else
	{
	  if (isP1)
	    {
	      board[2][0] = 'x';
	      isP1 = !isP1;
	    }
	  else
	    {
	      board[2][0] = 'o';
	      isP1 = !isP1;
		}
	}
    }
 else if (move == 2)
    {
      if (board[2][1] == 'o' || board[2][1] == 'x')
	{
	  cout <<"Someone is on this spot already\n";
	}
      else
	{
	  if (isP1)
	    {
	      board[2][1] = 'x';
	      isP1 = !isP1;
	    }
	  else
	    {
	      board[2][1] = 'o';
	      isP1 = !isP1;
		}
	}
    }
 else if (move == 3)
    {
      if (board[2][2] == 'o' || board[2][2] == 'x')
	{
	  cout <<"Someone is on this spot already\n";
	}
      else
	{
	  if (isP1)
	    {
	      board[2][2] = 'x';
	      isP1 = !isP1;
	    }
	  else
	    {
	      board[2][2] = 'o';
	      isP1 = !isP1;
		}
	}
    }
}

		  
results getResults(const char board[3][3])
{
  if ((board[0][0] == 'x' && board[0][1] == 'x' && board[0][2] == 'x')
      || (board[0][0] == 'x' && board[1][1] == 'x' && board[2][2] == 'x')
      || (board[0][2] == 'x' && board[1][1] == 'x' && board[2][0] == 'x')
      || (board[0][0] == 'x' && board[1][0] == 'x' && board[2][0] == 'x')
      || (board[0][1] == 'x' && board[1][1] == 'x' && board[2][1] == 'x')
      || (board[0][2] == 'x' && board[1][2] == 'x' && board[2][2] == 'x')
      || (board[1][0] == 'x' && board[1][1] == 'x' && board[1][2] == 'x')
      || (board[2][0] == 'x' && board[2][1] == 'x' && board[2][2] == 'x'))
    return xWins;

  else if ((board[0][0] == 'o' && board[0][1] == 'o' && board[0][2] == 'o')
	   || (board[0][0] == 'o' && board[1][1] == 'o' && board[2][2] == 'o')
	   || (board[0][2] == 'o' && board[1][1] == 'o' && board[2][0] == 'o')
	   || (board[0][0] == 'o' && board[1][0] == 'o' && board[2][0] == 'o')
	   || (board[0][1] == 'o' && board[1][1] == 'o' && board[2][1] == 'o')
	   || (board[0][2] == 'o' && board[1][2] == 'o' && board[2][2] == 'o')
	   || (board[1][0] == 'o' && board[1][1] == 'o' && board[1][2] == 'o')
	   || (board[2][0] == 'o' && board[2][1] == 'o' && board[2][2] == 'o'))
    return oWins;

  else if ((board[0][0] != ' ' && board[1][0] != ' ' && board[2][0] != ' ')
	   && (board[0][1] != ' ' && board[1][1] != ' ' && board[2][1] != ' ')
	   && (board[0][2] != ' ' && board[1][2] != ' ' && board[2][2] != ' '))
    return draw;
  
  else
    return goOn;
}

void displayResults(results result, const char board[3][3])
{
  if(result == oWins)
    cout <<"O wins!\n";
  
  else if(result == xWins)
    cout <<"X wins!\n";
  
  else if(result == draw)
    cout <<"You tied!\n";
}

That is a lot of if-else statements. Think you can rewrite this with a more logical approach?

Note: This is not to bash you! If you can think of creating this with another approach, it may help with other types of OOP. Consider using a class for each player as either X or O, and using enum. ::hint hint:: :D
2nd Note: Oh, sorry. This was posted ~2 weeks ago. Likely should not have replied to this thread by now.

Edited 4 Years Ago by Saith