Graphics for pacman

This is a discussion on Graphics for pacman within the C Programming forums, part of the General Programming Boards category; Hi ! I have just started creating (the oft repeated & much harassed) the pacman game. I have created a ...

  1. #1
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    Nov 2009
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    Red face Graphics for pacman

    Hi !

    I have just started creating (the oft repeated & much harassed) the pacman game. I have created a 2 - D array, calling it map, that would serve to be my logical grid...

    My 2 - D array contains following values :
    0 - Empty, 1 - Wall, 2 - Pill, 3 - Ghost, 4 - Pacman

    I want to create the grid graphically using information from 'map'...sumthng like where there is a '1' plot pixels & so on...Here's what I did (to create the walls or grid) :

    Code:
       for(int i = 0; i < MAX_SZ; i++)
       {
        x = 99;
    
        for(int j = 0; j < MAX_SZ; j++)
        {
         if(map[i][j] == 1)
          putpixel(x, y, BLUE);
    
         x++;
        }
    
        y++;
       }
    where MAX_SZ is 21 (rows or columns of map) & x & y are my starting point - 99

    This code creates a 21 x 21 pixels grid (my animated pacman is bigger than the grid & gobbles it up when it is moved around )

    Can you guys suggest me a better way to do this, as in creating a grid in which each cell is of uniform size (i.e, pixels) ?

    I dont intend to use sprites or any other fancy graphics tool - just the graphics header in turbo c (happen to be targetting the dos enviroment).

  2. #2
    and the Hat of Guessing tabstop's Avatar
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    The idea is probably that your grid may well be 21x21, but each "cell" is more than one pixel large. However large your pacman is -- that's how large everything should be. So if it's a wall, you don't just draw a pixel worth of blue; you make it a box of blue.

    I don't know anything whatsoever about the graphics header in Turbo C, but hopefully there's a way to draw a box.

  3. #3
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    Thanks tabstop ! I understand the notion that you just described...in turbo c we dont have a function like a box but we do have a function called line() that can be used to achieve the same...its just that I have been unable to tweak my simple for loop to do that using line function...

  4. #4
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    I resolved my problem by doing this :

    Code:
       for(int i = 0; i < MAX_SZ; i++)
       {
        x = 49;
    
        for(int j = 0; j < MAX_SZ; j++)
        {
         if(map[i][j] == 1)
         {
          //putpixel(x, y, BLUE);
          line(x, y, x + 15, y);
          line(x + 15, y, x + 15, y + 15);
          line(x + 15, y + 15, x, y + 15);
          line(x, y, x, y + 15);
         }
    
         x += 15;
        }
    
        y += 15;
       }
    The idea is probably that your grid may well be 21x21, but each "cell" is more than one pixel large. However large your pacman is -- that's how large everything should be. So if it's a wall, you don't just draw a pixel worth of blue; you make it a box of blue.
    That & an expresso really drove the point home

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