07 December 2023, 23:18 | #1 |
This cat is no more
Join Date: Dec 2004
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[WIP] Tetris conversion
I've decided to change the style of the games I'm converting for a moment.
I consider Tetris Arcade version by Atari the best Tetris version around. It's colored and the music is great. The game used a 6502 CPU and not a Z80. I wrote a converting source tool for 6502 to 68000 as well. Not a lot of reverse-engineering has been done on that one by anyone (including me) but with so little RE I could make the game start & display the first screens. Thanks to MAME I could workaround the nasty protection (constant bank switching caused by "slapstic" chip) and unlike my other ports, the project is more a fast emulator than a re-coding. It requires AGA because the original game has 16 banks of 16 colors and a 256 color palette which is - added - dynamic. So ECS port would be quite tricky without rewriting the whole game. ATM it produces a 1:1 graphical arcade port. Sound will be added later. [ Show youtube player ] https://github.com/jotd666/tetris |
07 December 2023, 23:22 | #2 | |
PascalDe73
Join Date: Apr 2019
Location: Charleroi Belgium
Age: 51
Posts: 227
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Quote:
Congratulations I think it will Be very Nice |
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07 December 2023, 23:27 | #3 |
Registered User
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Location: Tacoma, WA USA
Age: 52
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Nice!
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08 December 2023, 04:21 | #4 |
Registered User
Join Date: Mar 2021
Location: Paris / France
Posts: 50
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Very good game choice !
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08 December 2023, 04:39 | #5 |
J.M.D - Bedroom Musician
Join Date: Apr 2014
Location: los angeles,ca
Posts: 3,673
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Flashpoint is cute too, love that one and give a different take to tetris
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08 December 2023, 07:26 | #6 |
Registered User
Join Date: Dec 2016
Location: Italy
Posts: 791
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Another hit for our Amigas
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08 December 2023, 08:23 | #7 |
HOL/FTP busy bee
Join Date: Sep 2006
Location: Germany
Age: 46
Posts: 32,489
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Looking forward to it
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08 December 2023, 09:41 | #8 |
Registered User
Join Date: Jun 2005
Location: Aarhus, Denmark
Age: 46
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Nice project - looking forward to it. Just have to chip in that I have a fondness for the Spectrum Holobyte release with the nice Russian background images. The hours that I spent playing that one on an IBM PS/2 with an 8086 CPU and a black and white screen. Good times.
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08 December 2023, 09:55 | #9 |
Registered User
Join Date: Oct 2021
Location: England
Posts: 1,313
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looking good, my fave tetris clone is still ATA on the C64 tho, no idea why, probably the sid tunage.
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08 December 2023, 10:02 | #10 |
Registered User
Join Date: May 2021
Location: Euerbach/Germany
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Good choice, thank you.
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08 December 2023, 12:12 | #11 |
Registered User
Join Date: Apr 2002
Location: Germany
Age: 43
Posts: 747
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I love the Tetris Arcade game. Looking forward for another great conversion finally appearing on the Amiga .
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08 December 2023, 12:47 | #12 |
Ex nihilo nihil
Join Date: Oct 2017
Location: CH
Posts: 5,137
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Nice !
If not already done, I recommend you to watch the "biopic" movie about this game : https://en.wikipedia.org/wiki/Tetris_(film) [ Show youtube player ] |
08 December 2023, 16:41 | #13 |
Registered User
Join Date: Sep 2019
Location: Italy
Age: 51
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Fantastic ! One of the most iconic arcade and also one of the most playable, comes to Amiga with a perfect port ! Great Jotd you never cease to amaze me !
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08 December 2023, 16:58 | #14 |
Registered User
Join Date: Jul 2018
Location: Scotland
Posts: 857
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Exciting developments, great game! At the speed you go will expect this to be out in time for Chrimbo!
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08 December 2023, 17:19 | #15 |
cheeky scoundrel
Join Date: Nov 2004
Location: Spijkenisse/Netherlands
Age: 43
Posts: 7,086
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The dude just casually creates a code converter.
My favorite Tetris remains Twintris. Love the music, love the two player mode, love the earth quakes and love the fact that it has smooth movement of the tiles. But that doesn't mean there is no room for an authentic version next to the flashy version |
08 December 2023, 17:23 | #16 |
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Join Date: Oct 2022
Location: Roma
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Oh heck yeah! This is amazing! Maybe the real Puyo Puyo on Amiga will finally be possible one day
Last edited by Cris1997XX; 08 December 2023 at 17:32. |
08 December 2023, 17:39 | #17 | |
This cat is no more
Join Date: Dec 2004
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LOL yeah. It took me a lot more time to make the Z80 converter to 68000 right. With this experience, creating a 6502 to 68000 converter was faster. Plus I never coded in Z80, but I coded/hacked on 6502 back in the eighties. It helps. Quote:
Had a quick Twintris play the other night. The version is very good, it's pretty certain that they were trying to imitate and better the arcade version, but the smooth movement is a fake good idea, as you never know when the blockis properly positionned. Plus they swapped the colors between blocks (L shaped blocks are purple/yellow when in the arcade they're yellow/purple). |
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09 December 2023, 05:48 | #18 |
Registered User
Join Date: Sep 2009
Location: San Antonio, TX USA
Age: 50
Posts: 1,185
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I too, think this version is the best. Anytime I see it in the arcade I need to play it.
I can't wait till you finish it. Good luck. |
11 December 2023, 00:36 | #19 |
Registered User
Join Date: Jul 2014
Location: Spain
Posts: 60
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Love it! Thanks for this work to port the best version of Tetris to Amiga!
I remember when I suggested you this project, amazing! Will be Aga or Ocs? Regards! Last edited by franeti; 11 December 2023 at 00:50. |
11 December 2023, 08:24 | #20 |
This cat is no more
Join Date: Dec 2004
Location: FRANCE
Age: 52
Posts: 8,436
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It will be AGA as stated above. ECS can't cope with all the banked palette stuff and a close version would need a complete rewrite.
I can tell you that it's already playable and I hope to release a demo version (without sound) in a few days. |
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