Specifying Data Directory Locations in C Source

tonyfreeman · 02-06-2006, 10:25 PM

How does one substitute data directory information in C?

Here's the code:

Code:

// LOAD IN THE GAME BACKGROUND
temp = IMG_Load("data/images/background.png");
background = SDL_DisplayFormat(temp);
SDL_FreeSurface(temp);

When I do the universal three step install:

Code:

./configure
make
sudo make install

... it installs my executable in /usr/local/bin and the images and other data files in /usr/local/share/Patolli

Patolli is the name of the project and executable.

Please help! What do I need to do to make sure the executable knows where the images are installed?

-- Tony

dmail · 02-07-2006, 04:00 AM

try something like

Code:

static const std::string DEFAULT_IMAGE_PATH = "../share/Patolli/data/images/";

........

void load_image(std::string name)
{
   std::string full_path = DEFAULT_IMAGE_PATH + name;
   // LOAD IN THE GAME BACKGROUND
   temp = IMG_Load( full_path.c_str() );
   background = SDL_DisplayFormat(temp);
   SDL_FreeSurface(temp);
}

<edit> i see you using c not c++. in that case

Code:

static const char DEFAULT_IMAGE_PATH [] "../share/Patolli/data/images/";

........

void load_image(char* name)
{
   char full_path[50];
   strcpy (full_path,DEFAULT_IMAGE_PATH);
   strcat(full_path, name);

  // LOAD IN THE GAME BACKGROUND
   temp = IMG_Load( full_path );
   background = SDL_DisplayFormat(temp);
   SDL_FreeSurface(temp);
}

but this will only work on your machine, to work on others change the save path for the project and move the project there.