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Atari 2600 Homebrew - ElectroBall (Complete!)

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Bump - I have posted Beta 6 versions to the original topic.  PAL50/PAL60/NTSC should be fairly well centered and stable on people's systems.  I've also made AI Hard mode on Spring/Summer more challenging with regards to the goalie - if a ball is coming its way from far away it's not going to let it idlely score (but AI Hard is beatable - it just takes patch worthy skill & effort!)

 

Special thanks to Philsan and Bomberman94 for a few iterations of testing of beta 5 on their PAL systems.  The only known issue is on some PAL systems there is white ghosting seen on the title/options screen before the screen is even drawn.

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On 8/24/2021 at 4:18 PM, somebooks said:

I love this game.

 

Thanks for the kind words! 

 

In other updates, I was perusing old development threads in this forum when I came across SpiceWare's post on analyzing the 2600 Battlezone cartridge in Stella, where I discovered the use of the "trapwrite" command.  I was able to use that to analyze my own game, and discovered that I had an extra VSYNC for the Title/Options screen, which caused some strange ghosting on some machines.  I was also able to use trapwrite VSYNC/trapwrite VBLANK to make a consistent VSYNC/VBLANK/Draw/Overscan down to the scanline across my various screens.  I updated the first post with the latest beta build, which I figure to be the last WIP beta build unless someone finds a bug in the next few weeks (and if you do, please let me know!).  Once it is done I'll post a "Completed V1.0" build.

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Tested new versions and they work on real PAL hardware.

I won Spring with medium and Adapt AI.

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19 hours ago, Philsan said:

Tested new versions and they work on real PAL hardware.

I won Spring with medium and Adapt AI.

 

Nice!  Hopefully I have the gist of what constitutes a stable Atari 2600 display now.

 

For the maximum challenge, play on the "AI Hard" setting with your difficulty switch set to "A" and the AI's set to "B".

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Bump.  No more bugs have been discovered in 2 weeks, so I am marking this as complete.  Updated final public V1.0 ROMs are posted on the main page.  Thanks to all for your testing and feedback!  It's been a fun experience, and I'm glad the only struggles I had to deal with in developing an Atari 2600 game was with the console itself, rather than what commercial developers had to deal with back in the day with Christmas deadlines or pressures from management on cartridge memory sizes or other constraints.

 

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ZeroPage Homebrew is playing ElectroBall on tomorrow's (Fri Sep 17, 2021) stream LIVE on Twitch at 12PM PT | 3PM ET | 7PM GMT!

 

Games:

(WATCH IN 1080P60 FOR FULL QUALITY)

 

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