TTT Problem

This is a discussion on TTT Problem within the C Programming forums, part of the General Programming Boards category; Here I have a ttt code: Code: #include <stdio.h> #include <windows.h> int turn, move; char name1[25], name2[25]; char board [9]; ...

  1. #1
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    TTT Problem

    Here I have a ttt code:

    Code:
    #include <stdio.h>
    #include <windows.h>
    
    int turn, move;
    char name1[25], name2[25];
    char board [9]; // The tic-tac-toe Board
    
    
    void DrawBoard();
    void DrawBoard() //* Draws the board *//
    {
    printf("\n\n");
    printf(" %c | %c | %c \n", board[1], board[2], board[3]);
    printf(" --------- \n");
    printf(" %c | %c | %c \n", board[4], board[5], board[6]);
    printf(" --------- \n");
    printf(" %c | %c | %c \n", board[7], board[8], board[9]);
    printf("\n\n");
    }
    
    void CheckSpace(); 
    void CheckSpace() // Checks for double usage and places X's and O's
    {
    	if (turn == 1)
    	{board[move] = 'X';}
    else
    	{board[move] = 'O';}
    }
    
    
    int main()
    
    {
    BOOL StillPlaying=TRUE;
    int move=0;
    int turn=1;
    
    printf("Welcome to tic-tac-toe!!!\n\n");
    
    //players names
    printf("What is player 1's name: ");	
    	scanf("%s", name1);
    printf("\nWhat is player 2's name: ");
    	scanf("%s", name2);
    	
    while (StillPlaying)
    	{
    		DrawBoard();
    
    	if (turn == 1){
    		printf("Please make a move %s : ", name1);
    		scanf("%d", &move);
    		turn=2;
    		printf("\n");
    		}
    	else{
    		printf("Please make a move %s : ", name2);
    		scanf("%d", &move);
    		turn=1;
    		printf("\n");
    	} 
    
    	
    CheckSpace();
    
    }//While Winner
    
    return 0;	
    
    }// int main()
    When I put the piece of code which assigns X's and O's in a function it seems to to see it or read it right. If I move the code in the while loop its okay.. Why is that

  2. #2
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    Well look at this... Its same code but I moved the X and O assign code in the while loop:

    Code:
    #include <stdio.h>
    #include <windows.h>
    
    int turn, move;
    char name1[25], name2[25];
    char board [9]; // The tic-tac-toe Board
    
    
    void DrawBoard();
    void DrawBoard() //* Draws the board *//
    {
    printf("\n\n");
    printf(" %c | %c | %c \n", board[1], board[2], board[3]);
    printf(" --------- \n");
    printf(" %c | %c | %c \n", board[4], board[5], board[6]);
    printf(" --------- \n");
    printf(" %c | %c | %c \n", board[7], board[8], board[9]);
    printf("\n\n");
    }
    
    void CheckSpace(); 
    void CheckSpace() // Checks for double usage and places X's and O's
    {
    }
    
    
    int main()
    
    {
    BOOL StillPlaying=TRUE;
    int move=0;
    int turn=1;
    
    printf("Welcome to tic-tac-toe!!!\n\n");
    
    //players names
    printf("What is player 1's name: ");	
    	scanf("%s", name1);
    printf("\nWhat is player 2's name: ");
    	scanf("%s", name2);
    	
    while (StillPlaying)
    	{
    		DrawBoard();
    
    	if (turn == 1){
    		printf("Please make a move %s : ", name1);
    		scanf("%d", &move);
    		turn=2;
    		printf("\n");
    		}
    	else{
    		printf("Please make a move %s : ", name2);
    		scanf("%d", &move);
    		turn=1;
    		printf("\n");
    	} 
    
    	
    {
    	if (turn == 1)
    	{board[move] = 'X';}
    else
    	{board[move] = 'O';}
    }
    
    }//While Winner
    
    return 0;	
    
    }// int main()
    and it works just fine... but why wouldn't it work in a function thing

  3. #3
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    ... and this is still wrong:

    >>printf(" %c | %c | %c \n", board[7], board[8], board[9]);

    Again, access your arrays from 0-8, not 1-9.
    When all else fails, read the instructions.
    If you're posting code, use code tags: [code] /* insert code here */ [/code]

  4. #4
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    again it will not work!!!
    Last edited by librab103; 07-03-2003 at 08:30 PM.

  5. #5
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    Well it will work I just tried it but to choose the upper left corner you would have to pick 0 instead of 1. How un-natrual that would be
    Last edited by librab103; 07-03-2003 at 08:31 PM.

  6. #6
    ATH0 quzah's Avatar
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    Originally posted by librab103
    Well it will work i just tried it but to choose the upper left corner you would have to pick 0 and not 1. How un natrual that would be
    It doesn't matter if it's unnatural, it's how arrays work in C. Either don't use arrays, or modify the input:

    "Enter a value from 1 to 9:"
    value_entered: 8

    value_entered -= 1;

    Quzah.
    Hope is the first step on the road to disappointment.

  7. #7
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    Originally posted by quzah
    It doesn't matter if it's unnatural, it's how arrays work in C. Either don't use arrays, or modify the input:

    "Enter a value from 1 to 9:"
    value_entered: 8

    value_entered -= 1;

    Quzah.
    I am not going to add all that if the compiler i am using and the C language doesn't give me any errors.

  8. #8
    ATH0 quzah's Avatar
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    Originally posted by librab103
    I am not going to add all that if the compiler i am using and the C language doesn't give me any errors.
    Well you're stupid then. No compiler will warn you about running out of the boundries of your array. Quite frankly, the C language lets you address any memory address you want to. It's up to you to not be stupid.

    Honestly, don't bother asking for help if you're going to ignore what people tell you on how to fix your code. You obviously don't care if it works right. You just want the appearance of it working right.

    Quzah.
    Hope is the first step on the road to disappointment.

  9. #9
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    Yea i fix the array and assign ' ' to all board spaces

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