itch.io

I must be a master of digging out old stuff from the void ;-)
"GOB file documentation:

             THE FORMAT OF GOBFILES

Do YOU want to make your own GOB-files?
Then you have to know the GOB format!
Here you can find a brief desciption of it.
(this is all about how the file is saved)
Note: Everything is saved in Intel byteorder,
ie the least significant byte first.

                  THE HEADER

Offset   Size   Description
 0        2      Number of images in the file

For I=1 to Number of images

   Offset   Size   Description
    2+I*4    4      Offset in file to image data

End repeat

The above offsets are offsets from the beginning of
the file. Each image has it's own image data.
The image data is like this:

                THE IMAGE DATA

Offset   Size   Description
 0        2      Image width in pixels (W)
 2        2      Image height in pixels (H)
 4        2      Hotspot x
 6        2      Hotspot y
 8        W*H    Bitmap data

The offsets above are offsets in the image data (for each image).

The Hotspot x/y of a specific image works like this:
Whenever a sprite is drawn at (x, y) with that image,
the image is drawn at (x - hotspot x, y - hotspot y),
where hotspot x/y are the hotspots for that image.

The bitmap data is just a block of colordata for each pixel.
It scans the image horisontally left/down. This means that
the first byte represents the upper left pixel, the second
represents the pixel to the right of that and so on.
If the width is 10  pixels then the 10th byte of bitmap data
will represent the pixel (0, 1)."

Found it in a text file in this zip:

https://web.archive.org/web/20001008094625if_/http://www.brainchilddesign.com:80...

I understand that it's probably out of scope, just found it very amusing that I actually found it :-)

Anyhow, when I find the time I'll see if I can get an old level working and then see if I can automate the process to get all old levels working.