-> -> ->
It just happens to be one of the muckiest pieces of code written so far. You can see it in action in a video I've knocked together here (262KB). [I haven't put together a video for a while, so any old excuse, eh?]
I rejigged a few bits of the code, including neatening up the core sprite routines (so they are now much faster, huzzah!)
I ran a test on what it would look like if I added 8 "mines" (sprite limit and all that). The result? Sprite flicker is very very low! Looks like I'll be able to add the mines without issue...
These mines are rather evil. You get varying numbers of them, starting with very few in the early levels and going up to 8 in the later levels (well, as far as I've managed to get!). As enemies appear on screen they "lay" a trail of mines that drift towards you.
(Screenshot from BeebEm).