> I think that it would be better to convert the code to the standard format,
> as this would allow other things like diagonal moving bombs.
Can you do this, or do you want me to try?
> Couldn't the already existing destroy-the-shields routine be generalized for
> use with bombs and player shots?
I can use the existing routine to easily make an invaders-destroy-shields
routine, but it'd be difficult to do it within the same code. Reason: the
players-destroy-shields routine searches from the bottom up to find a
pixel to remove, while the invaders-destroy-shields must start at the top
of the shield and go down. It's easier to copy the routine and change a
couple things than to try to shoehorn everything into one routine.
> >About two minutes after I wrote that message I realized that simply setting
> >COLUPF to zero would work perfectly, except that you couldn't see the bombs
> >until they dropped below the last row of invaders.
>
> But Atari SI allows you to hit the invaders even when they're invisible.
> This would be the difficult part.
Don't the collision registers activate even when COLUPF is zero? I'm
pretty sure they do. The collision-detection hardware only checks PFx,
ENAMx, ENABL, and GRPxx, not the color registers.
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