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Everything posted by Defender_2600
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... and * final * v.4 :
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Update required...
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Really, thanks Bob. P.S. Other tweaks on this latest v.2 update (perhaps less easy to spot) you can see them in this GIF:
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Wow, fantastic! Bob, you're amazingly fast! I hope you can solve the problem of those 2-scanlines. Meanwhile, I have prepared a graphical update for you, it is really cleaner and accurate (mock-up below). About the score, if you still have Maria / CPU time, maybe you could try to increase the vertical resolution of others 8 lines (for example, 7800 Water Ski and Tank Command both have the total height at 224 lines). Again, thanks so much Bob!
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... another idea :
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...and just another option :
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Great progress, I am impressed! Bob, as usual, you leave me speechless! Bob, just a thought about the vertical resolution, because I see that only 144 pixels are used. Considering the total height at 224 lines, I wondered if it is possible to increase the vertical resolution of the playfield. Here is an quick/dirty example that compare 144 vs 176 vertical resolution (wide pixels). Again, thanks for your kind attention. Marco
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Thanks for your reply, Bob! For convenience, I added the fruits to my setup, maze 1 does not require overlapping sprites, instead with maze 2 and maze 3 you can use the 320D mode for overlapping sprites (red sprites + green sprites, see sample below). The 320D mode has the advantage of being 1bpp and in our case it can be used (without combination restrictions) for momochromatic sprites * only * with color 2 (PO C2 and P4 C2) : --------------------------------------------------------------------------------------------------------------------------- 320D (WM=0,RM1=1,RM0=0) 1 bit per pixel, 3 colors + background & transparent from 2 palettes P1 P0 D7531 D6420 P2=0 : palette 0 P2=1 : palette 4 0 0 0 0 BG + BG / transparent 0 0 1 0 C2 + BG 0 0 0 1 BG + C2 0 0 1 1 C2 + C2 -----------------------------------------------------------------------------------------------------------------------------
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Hi Bob, looks great !! I was thinking that maybe you can use dithering only with the purple monster : ( *for some fruits it will be necessary to use two overlapping sprites)
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AtGames 2018 speculation thread
Defender_2600 replied to OscarGungan's topic in AtGames Flashback and Portable Consoles
Hi Kevin, I was just reading this article. Sounds like a good update : http://www.seganerds.com/2017/08/15/two-fans-have-reportedly-fixed-the-atgames-genesis-audio-issues/ -
320B Background with 160(A or B) Sprites?
Defender_2600 replied to PacManPlus's topic in Atari 7800 Programming
Obviously, I will not ask you questions about this mysterious background... but I wish you all the best in your work. -
320B Background with 160(A or B) Sprites?
Defender_2600 replied to PacManPlus's topic in Atari 7800 Programming
Bob, I don't know if it helps for your project (and maybe I'm missing something) but the 320D mode looks like the equivalent of 320B mode (with 3 colors + background & transparent from 2 palettes) with the advantage that the 320D mode is only 1bpp (as 320A) and therefore approximately equivalent to 160A (cycles consumption). -
320B Background with 160(A or B) Sprites?
Defender_2600 replied to PacManPlus's topic in Atari 7800 Programming
Hi Bob, 320 mode + 160 mode would be very interesting ... Anyway, I see a few square pixels in those sprites. Maybe they used the 320C mode sprites with 320A mode background. -------------------------------------------------------------------------------------------------- 320C WM=1,RM1=1,RM0=1 4 colors from 2 palettes + background & transparent, 2 bits / pixel D7 D6 D3 D2 0 0 0 0 BG + BG / transparent 0 0 0 1 BG + BG / transparent 0 0 1 0 BG + BG / transparent 0 0 1 1 BG + BG / transparent 0 1 0 0 BG + c2 0 1 0 1 BG + c6 0 1 1 0 BG + c10 0 1 1 1 BG + c14 1 0 0 0 c2 + BG 1 0 0 1 c6 + BG 1 0 1 0 c10 + BG 1 0 1 1 c14 + BG 1 1 0 0 c2 + c2 1 1 0 1 c6 + c6 1 1 1 0 c10 + c10 1 1 1 1 c14 + c14 ----------------------------------------------------------------------------------------------------- -
Arcade Games You'd Like To See Ported To The Atari 7800
Defender_2600 replied to Skippy B. Coyote's topic in Atari 7800
- In Pac-Man Collection, With the difficulty switch set, in a two player game the opposite player controls Blinky when in chase mode: Pac-Man Collection (XM Enhanced) or Pac-Man Collection Updated Monsters - There's a 'Ms. Pac-Man Twin' port, albeit unfinished: Ms. Pac-Man Twin (Unfinished) - Also, ...someone did a hack which reversed the monsters and the player: Inky (Hack) @ PacManPlus: Hi Bob! -
WIP Game for 7800: Dream Princess Adventure
Defender_2600 replied to gorfcadet's topic in Atari 7800
Great work, gorfcadet! As a side note, I would just suggest to consider the real pixel aspect ratio so that, as far as possible, this graphics do not look "wide" on real hardware. -
How High Can You Get.a78

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I'd like to whistle the music that plays at the beginning of Donkey Kong and put it into a comment, but, you know,...You'll just have to imagine it.
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Classic COMPUTER Games you'd love to see ported to the 7800
Defender_2600 replied to Inky's topic in Atari 7800
Another vote for "The Secret of Monkey Island". I would like to see greater use of the 7800 160B mode : -
Arcade Games You'd Like To See Ported To The Atari 7800
Defender_2600 replied to Skippy B. Coyote's topic in Atari 7800
I love Congo Bongo, so here is my mockup : -
Arcade Games You'd Like To See Ported To The Atari 7800
Defender_2600 replied to Skippy B. Coyote's topic in Atari 7800
Some time ago, I made a Popeye mockup for 7800 : -
Congratulations, Curt! I'm glad you're better and I wish you all the best for the future.
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Happy Birthday PacManPlus!!

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Another 7800 Game to update like Donkey Kong XM?
Defender_2600 replied to swlovinist's topic in Atari 7800
"3) Slightly downsized adaptation of the arcade font intended to match the look of the arcade." This is my preference. Great update, Kevin! -
new batch of 7800 games coming to the AA store
Defender_2600 replied to RevEng's topic in Atari 7800
https://www.youtube.com/watch?v=JNU1iJzfPFA -
Amazing improvement as always, Kevin. Thank you so much!! :thumbsup:
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Thanks guys! In August, I was working on an interesting update but then I've been busy with real life. I'll try to make some progress this weekend.
