Parsec 2600 update: scrolling

Stella 4.7.2: "D-NEW-1enemy.bas"

This link is to the scrolling test on Youtube for the Atari 2600 Parsec I am programming.

lots of slight of hand to make it look decent. I have a sprite at the bottom that changes after each pass and one dot that moves all over the screen really fast to look like more stars than there is. the only problem is that when the star is on the same line as the enemy ship, the enemy ship slightly flickers. but the effect is so fast it hardly is noticed.

if anyone is wondering, I’m programming this in BA BASIC for the Atari 2600 which is an compiled BASIC. I’m using the multi-sprite kernel. FYI, the Atari 2600 only has two sprites.. The multi-sprite kernel splits the second sprite up into five more sprites.


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