Quoted from mayuh:
Yeah, I've had a look in the code... And with my limited knowledge I wasn't even able to update anims for my ROM
Well, lemme know, if you're going to dive into it...
To change images:
1) add the new frames to the images folder. Make sure they are in the pgm format as that is all that the code can read.
2) open the file labeled wpc.ild in the platform/wpc folder. type in the names of the new image files. Here is an example from the .ild file:
The IMG_FREEWPC_SMALL and IMG_FREEWPC are name tags for the first and last image. The code calls the image renderer by these tags and basically says start at the first image and continue until you reach the last.
If you want to add completely new animations, instead of replacing, you would also have to add the code to call the animation. That is also not too difficult. Look at the code, pretty much every mode has examples of how I did it.