[X] My Assistant

[GiveMeYourBagel]

I'm trying to make a tic tac toe program, but i'm not sure where to start. I need some help on using 2D arrays to set the spot on the grid where x or o goes, any suggestions on how to start? Just logic not the code.

[macosxnerd101]

Are you trying to design your own Artificial Intelligence program to play against a user or just place the Xs and Os? If you are doing the latter, just use a Random object calling the nextBoolean() method. And don't forget to check to make sure that there are either 4 Xs and 5 Os or 5 Xs and 4 Os. If you need more help, show us that you have put some more thought into your program. We will be glad to help you; we just need to see evidence that you are actually trying. Good luck!

[pbl]

There is not much logic (artificial inteligence) involved in a TicTacToe game... just brute force
for every free spot what hapen if computer plays there ? then for every free spots left what happens if user plays there ?
repeat he process until there is no more free spot
if one of the play (here a bit of AI) makes the computer sure to win take that one

[GiveMeYourBagel]

I'm not trying to make an AI program, i just gotta put the user input into the correct spot. I guess im just having trouble with that. It's the 2D arrays thats confusing me. So something like the user inputs the position and it assigns it to the 2D array. I guess i need help with 2D arrays, they confuse me and im not sure how to assign something to them. Another thing im not sure about is the grid, i have no idea how to do that

This post has been edited by GiveMeYourBagel: 6 Nov, 2009 - 01:55 PM

[GiveMeYourBagel]

Can someone explain to me how you can assign 2D arrays from a user input? or show an example?

[GiveMeYourBagel]

I still need help on how to put the X's and O's on the grid at the correct position

CODE

import java.util.Scanner;

public class TicTacToeMain {

  public static void main(String[] args) {
      int position;
    Scanner keyboard = new Scanner(System.in);
      System.out.println ("Welcome to Tic Tac Toe!");


    System.out.println ("Enter the position of your piece. Enter the Row first then the Column");
      int row = keyboard.nextInt();
      int col = keyboard.nextInt();

    int[][] grid = new int[3][3];
    
    for (int r = 0; r < 3; r ++)
        for (int c = 0; c < 3; c++)
            grid[row][col]= ' ';
          


      
        

  }
    
    
}

[GiveMeYourBagel]

Here's some newer code that i came up with, but i still need help with outputting the x's and o's in the correct position

CODE

import java.util.Scanner;

public class TicTacToeMain {

  public static void main(String[] args) {
      int position;
      int turn = 0;
      boolean result = false;
    Scanner keyboard = new Scanner(System.in);
      System.out.println ("Welcome to Tic Tac Toe!");


    char[][] grid = new char[3][3];

    while (result == false) {
        
    if (turn % 2 == 0){
        System.out.println ("Player 1, it is your turn");
        System.out.println ("Please input the row and column you wish you play on");
          int row = keyboard.nextInt();
          int col = keyboard.nextInt();
          
          for (int r = 0; r < 3; r ++)
            for (int c = 0; c < 3; c++)
                grid[row][col]= ' ';
            
        grid[row][col] = 'X';
        System.out.println(grid[row][col]);
        }        
    
    else {
        System.out.println ("Player 2, it is your turn");
        System.out.println ("Please input the row and column you wish you play on");
          int row = keyboard.nextInt();
          int col = keyboard.nextInt();
          
          for (int r = 0; r < 3; r ++)
            for (int c = 0; c < 3; c++)
                grid[row][col]= ' ';
                
        grid[row][col] = 'O';
        System.out.println(grid[row][col]);
    }
    
    turn += turn;
    
    }
  }
}

And for some reason, the turns isn't working either any help?

This post has been edited by GiveMeYourBagel: 8 Nov, 2009 - 01:32 PM