Le code source du Prototype du jeu avec un commentaire de son auteur.
Maybe i can add some technical things about the sprite engine which i believe to rembember :
- sprites are tile based like on a game console
- there are a lot of special routines for all cases which is used by the sprite engine, i.e. clipping a tile to the screen boundaries, masking to the background if needed, not masking if not needed and sprites that are masked on byte-level instead of pixel-based and so on
- it uses three screens, two for screen flipping and one is holding the background graphics to restore the sprite background
- there is some kind of a sprite editor, i think the graphic has been stored inside the second 64k memory bank of the CPC 6128