inputting and checking

This is a discussion on inputting and checking within the C Programming forums, part of the General Programming Boards category; Basically i'm looking for how you can input two numbers which are then checked against a grid. if there is ...

  1. #1
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    inputting and checking

    Basically i'm looking for how you can input two numbers which are then checked against a grid. if there is a mine in the co-ordinates you entered (3,3) for example the program ends. if not it continues and you type another two numbers and so on. here's what i have so far

    Code:
    #include <stdio.h>
    char grid[12][12];
    void display();
    void intialise();
    void place_1(int x1,int y1, char c);
    main()
    {
        printf("Welcome To Minesweeper \n");
        intialise();
        place_1(11,11,'x'); 
        printf("Enter 2 numbers: \n");
        scanf("%d, %d");
        system("PAUSE");
    }
    
    void display()
    {
        int x,y;
        printf("\n");
        for (x=0;x<12;x=x+1)
        {
            for (y=0;y<12;y++)
            {
                    printf("%c ",grid[x][y]);
            }
            printf("\n");
        }
    }
    
    void intialise()
    {
        int x,y;
        for (x=0;x<12;x=x+1)
        {
            for (y=0;y<12;y++)
            {
                    grid[x][y]='o';
            }
        }
    }
    void place_1(int x1,int y1, char c)
    {
        grid[x1][y1]=c;
        display();
    }
    can anyone help?

    I don't need anythingwriting i just need to know how to get the scanf fuction and that working really. basically if you type:

    12
    12

    and there is no mine there (as previously set) then it will continue (i can add a message) but if there is a mine there then it will say game over and exit when you press any key.

    If anyone can help or give me a few pointers please let me know.
    cheers

  2. #2
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    hope this helps

    if you have any questions, shoot.. (my C is better than my English so, if i was unclear..)

    Code:
    #include <stdio.h>
    
    #define MAX 12
    #define FALSE 0
    #define TRUE 1
    
    void display();
    void intialise();
    void placeMine(int x1,int y1, char c);
    
    int grid[MAX][MAX];			/* FALSE: no mine, TRUE: mine */
    int visible[MAX][MAX];			/* true when 'clicked' */
    
    int main(void)
    {
        printf("Welcome To Minesweeper \n");
    
        int x,y;		                /* user coords.. */
    
        intialise();			
    
        placeMine(11,11,'x'); 		/* this should become a minerandomiser */
    
        printf("Enter 2 numbers: \n");
        scanf("%d %d", &x, &y);
    
        visible[x][y] = TRUE;		/* 'clicked' on (x,y) */
    
        if(grid[x][y])		        /* if mine */
    	printf("Game Over\n");
        else  
            display();				/* display grid */
    
        system("PAUSE");
    
        return 0;
    }
    
    void display()
    {
        int i, j;
    
        printf("\n");
    
        for (i = 0; i < MAX; i++) {
           for (j = 0; j < MAX; j++) 
               if(!visible[i][j])
    		printf("0");		
    	   else if(grid[i][j])			/* if visible and mine */
    		printf("X");
    	   else 
    		printf("_");
    		/* write a function that calculates how many mines are next to mine[i][j], display this number (only when visible) */
            
           
           printf("\n");
        }
    }
    
    void intialise()
    {
        int i, j;
    
        for (i = 0; i < 12; i++)
            for (j = 0; j < 12; j++){
               grid[i][j] = FALSE;			/* you should write a function that randomises the mines,.. */
    	   visible[i][j] = FALSE;               
            }
    }
    
    void placeMine(int x,int y, char c)		/* this should become the randomise mine function */
    {
        grid[x][y] = TRUE;			        /* mine is placed on (x,y) */
    }

  3. #3
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    >>i'm looking for how you can input two numbers
    http://faq.cprogramming.com/cgi-bin/...&id=1043284385
    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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    Hi thanks zuiplap but maybe i am doing something wrong as i can't get that to work

    before you posted that code i was thinking maybe i could do something with If statments.

    so if i define where the 10 mines are to be to start with say grid's (1,1) (3,4) etc...

    then use if statments.

    if 1,1 then game over
    else if

    but i don't really think that would work as the if stament would be massive and i don't know about C as i've not been doing it that long but i know with excel nested if statments were a nightmate.

  5. #5
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    Code:
    users_guess_x = 2;
    users_guess_y = 5;
    
    if (grid[users_guess_x][users_guess_y] == BOMB)
    { 
      You're dead
    }
    When all else fails, read the instructions.
    If you're posting code, use code tags: [code] /* insert code here */ [/code]

  6. #6
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    It's ok i got the original code working.

    I've changed it a bit but am struggaling on trying to put a loop in. so you have to keep guessing till you hit a mine. I've managed to get it to ask you a few times but if you hit a mine it still try's to continue. I've added another mine so i could try testing it and it worked.

    Whats the best way to make it continue till you hit a mine?

    I tried adding another system function in with an if statment so that if it did hit a mine in it would exit but i could not seem to get this to work. any ideas?

  7. #7
    End Of Line Hammer's Avatar
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    post the relevant bits of code you're having trouble with.
    When all else fails, read the instructions.
    If you're posting code, use code tags: [code] /* insert code here */ [/code]

  8. #8
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    basically i'm trying to add a loop below this bit of code

    Code:
      intialise();			
    
        placeMine(11,11,'x'); 		
        placeMine(10,11,'x'); 
    
        printf("Enter 2 numbers: \n");
        scanf("%d %d", &x, &y);
    
        visible[x][y] = TRUE;		/* 'clicked' on (x,y) */
    
        if(grid[x][y])		        /* if mine */
    	printf("Sorry You Hit a Mine Game Over\n");
        else
            display();				/* display grid */
    so that if you don't hit a mine it will ask you for another go, but if you do hit a mine you won't get another go.

    although i've been messin about with it an i'm not sure if a loops the best way to go

  9. #9
    End Of Line Hammer's Avatar
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    Conceptually:
    Code:
     TotalMines = 10;
     
     While TotalMines > 0
       GetUsersInput
       if (grid[x][y] == MINE)
          TotalMines--;
     End While
    There's a lot more to it, the actual design/implementation will be up to you.
    When all else fails, read the instructions.
    If you're posting code, use code tags: [code] /* insert code here */ [/code]

  10. #10
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    yeah cheers.

    I know there's quite a bit to do i just wanted to get the basic concept so i can play about with it abit thanks for your help

  11. #11
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    Code:
       intialise();			
    
        placeMine(11,11,'.'); 		/*Where a Mine Is placed*/
        placeMine(10,11,'.');     /*Where a Mine Is placed*/
    
        printf("Enter 2 numbers: \n"); /*Text Displayed*/
        scanf("%d %d", &x, &y);        /*Get Numbers*/
    
        visible[x][y] = TRUE;		/* 'clicked' on (x,y) */
    
        if(grid[x][y])            /* if mine */   
    	printf("Sorry You Hit a Mine Game Over\n");  /*Text Displayed*/
        else 
        display();				/* display grid */
         printf("Well done You now have 10 points Try again\n");
          printf("\n");
          
          /*User's Second Attempt at Finding a Mine*/
          
             printf("Enter 2 numbers: \n"); /*Text Displayed*/
        scanf("%d %d", &x, &y);        /*Get Numbers*/
    
        visible[x][y] = TRUE;		/* 'clicked' on (x,y) */
    
        if(grid[x][y])            /* if mine */   
    	printf("Sorry You Hit a Mine Game Over\n");  /*Text Displayed*/
        else 
        display();				/* display grid */
         printf("Well done You now have 10 points Try again\n");
          printf("\n");
           
       system("PAUSE");
    
        return 0;
    
    }
    I've got it so it ask's you again if you do infact not hit a mine. But how can i get it so if you DO hit a mine it displays the grid showing you where you hit the mine? IT works for if you don't hit a mine but i can't seem to get it to work for when you DO hit a mine. It also needs to end once you hit a mine and not continue like it does now. I've tried end if and i can't seem to get it to work

  12. #12
    End Of Line Hammer's Avatar
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    Where is your big loop? You need to encase elements of your code in a loop (either "for" or "while" for example), a bit like my sample code above.
    When all else fails, read the instructions.
    If you're posting code, use code tags: [code] /* insert code here */ [/code]

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