Thread: 3D Tic Tac Toe Help

So I'm trying to create a 3D Tic Tac Toe game where two AI play against each other.

Right now I have 3 separate [3][3] board with different names, a variable that generates a random number between 1-3 (which represent the 3 boards), and a variable that generates a random number between 1-9 that represent the 9 spaces on the board.

My first idea was to create a switch case that takes the board choice variable, so if the number generated is 2, it will go to case 2, which represents board 2. Inside the case is a bunch of if/else statements which takes the board space number variable and checks which one was generated.

So if Case/Board 1, space 1 was generated, it will first check if that space has an X or O already there. If it does, it will say "This space is already take", else it will place the X or O in that spot.

Except that when I run the code, it automatically runs the "This space is already take" statement even if there is nothing there.

Right now I only have Case 1, Space 1 set in the way I described above. I also have the board and space variables set to 1 so that they automatically go to Case/board 1, Space 1, to test if it would even work.

Can someone please help me with this?

Code:

#include <iostream>
#include <string>
#include <stdlib.h>


using namespace std;


//---------------------------------------------------------------BOARD DECLARATIONS------------------------------------------------------------------------------
char board[3][3] = {{'1','2','3'},{'4','5','6'},{'7','8','9'}};
char board2[3][3] = {{'1','2','3'},{'4','5','6'},{'7','8','9'}};
char board3[3][3] = {{'1','2','3'},{'4','5','6'},{'7','8','9'}};
//----------------------------------------------------------------GLOBAL VARIABLES/FUNCTIONS--------------------------------------------------------------------------------------
int SpaceChoice = 1;
int BoardChoice = 1;
char AIlaura = 'O';
//----------------------------------------------------------------RANDOM AI SELECTOR----------------------------------------------------------------------------------------
int LauraAI()
{ 
    printf ("\nLaura-AI chose board %d to play in\n", BoardChoice);
    switch (BoardChoice){
    case 1://----------------------------------------------------BOARD ONE-------------------------
    printf("Laura Chose Space %d\n", SpaceChoice);
    if (SpaceChoice == 1)
    {
        if (board [0][0] = 'O' || 'X')
        {
            cout << "This Spot Is Already Taken" << endl;
        }
        else board [0][0] == 'O';    
    }
    else if (SpaceChoice == 2)
    {
        if(board[0][1] == 'O')
           board[0][1] = 'X';
        else
        {
            cout << "This Spot Is Already Taken" << endl;
            LauraAI();    
        }    
    }
    else if (SpaceChoice == 3)
    {
        if (board[0][2] == 'O')
            board[0][2] = 'X';
        else
        {
            cout << "This Spot Is Already Taken" << endl;
            LauraAI();    
        }    
    }
    else if (SpaceChoice == 4)
    {
        if (board[1][0] == 'O')
            board[1][0] = 'X';
        else
        {
            cout << "This Spot Is Already Taken" << endl;
            LauraAI();    
        }    
    }
    else if (SpaceChoice == 5)
    {
        if (board[1][1] == 'O')
            board[1][1] == 'X';
        else
        {
            cout << "This Spot Is Already Taken" << endl;
            LauraAI();    
        }    
    }
    else if (SpaceChoice == 6)
    {
        if (board[1][2] == 'O')
            board[1][2] == 'X';
        else
        {
            cout << "This Spot Is Already Taken" << endl;
            LauraAI();    
        }    
    }
    else if (SpaceChoice == 7)
    {
        if (board[2][0] == 'O')
            board[2][0] == 'X';
        else
        {
            cout << "This Spot Is Already Taken" << endl;
            LauraAI();    
        }    
    }
    else if (SpaceChoice == 8)
    {
        if (board[2][1] == 'O')
            board[2][1] == 'X';
        else
        {
            cout << "This Spot Is Already Taken" << endl;
            LauraAI();
        }    
    }
    else if (SpaceChoice == 9)
    {
        if (board[2][2] == 'O')
            board[2][2] == 'X';
        else
        {
            cout << "This Spot Is Already Taken" << endl;
            LauraAI();
        }
    }
    break;
    case 2://------------------------------------------------------BOARD TWO
        printf (" Hello!");
    break;
    case 3: //--------------------------------------------------- BOARD THREE
        printf ("goodbye!");
    break;
    }
}


int main ()
{
    cout << "\n\tWelcome To Tic Tac Toe!\n" << endl;
    printf ("Which Board would you like to play in (1-3): \n");
    LauraAI();
    return 0;
}