bB starfield effect

[+atari2600land]

Found this and played around with it so I thought I'd share something I discovered.

 

Perhaps you don't want the star field to cover the whole screen. Perhaps just the first half. You can put this in your game:

 bally=44
 ballheight=128

Replace "ball" with whatever you're using if not the ball. You'll notice that it makes the starfield effect for the top half.

To do only the bottom half, replace "bally=44" with "bally=177"

[+atari2600land]

Apparently this only works if you've set it to ball and not missile0. Any ideas as to why?

[+Karl G]

It works with any of the objects. For missile0, you need to change HMBL in the assembly portion to HMM0.

[+atari2600land]

I did.

EDIT: I meant the height thing I posted earlier.

[+Karl G]

Oh, sorry. It doesn't work for you if you set missile0height instead?

[+atari2600land]

Nope. It just displays the starfield all over the screen.