roland p Posted April 13, 2012 Share Posted April 13, 2012 Smooth scrolling should be possible too, at least with the current system by adding/removing lines at the top (smooth) and adjust the kernel setup (coarse). Could you exand on this further? I don't know enough assemmbly to interpret your source. The few demos I've seen with smooth horizontal scrolling also seem to take on a staggered line appearance. Is this because playfield pixels cannot be used for horizontal smooth scrolling? Somehow this is using the other graphic objects? Sorry, I ment saying vertical (up, down) scrolling. By adding black lines at the top (easy), I can do a faux vertical scroll. When 16 double scan lines are added, I can go back to add none, and re-arange the kernels (add a new kernel on top, remove one from below). The horizontal scrolling is now done with the graphic objects (player1, ball). There is a part where the playfieldpixels are used. On that part, the ball object is used to smooth out the playfield pixels. In Stella, you can enabable/disable the ball by pressing alt-b. alt-n toggles the playfield pixels. Quote Link to comment Share on other sites More sharing options...
sonicthe20 Posted June 18, 2012 Share Posted June 18, 2012 Im just wondering whats going to be the cover? Quote Link to comment Share on other sites More sharing options...
+Gemintronic Posted June 20, 2012 Share Posted June 20, 2012 Im just wondering whats going to be the cover? Didn't you know? The game is already finished! http://sandbox.yoyogames.com/games/184113-sonic-2600 Quote Link to comment Share on other sites More sharing options...
TrekMD Posted June 20, 2012 Share Posted June 20, 2012 That is cool. Is there a chance we'll see this in cart to play on a real 2600? Quote Link to comment Share on other sites More sharing options...
+Gemintronic Posted June 20, 2012 Share Posted June 20, 2012 Shhhh.. we need the assembly gurus to finish Ball Blazer 2600 and Castlevania 2600.. Quote Link to comment Share on other sites More sharing options...
roland p Posted August 27, 2012 Share Posted August 27, 2012 eight way scrolling! rom.bin 4 Quote Link to comment Share on other sites More sharing options...
+Propane13 Posted August 27, 2012 Share Posted August 27, 2012 Neato! Quote Link to comment Share on other sites More sharing options...
Joe Musashi Posted August 27, 2012 Share Posted August 27, 2012 Very nice! It should be easy to extend the kernel to individually set the colors for COLUBK and COLUP1 per band. That way you could flip the colors for background and player 1 to make a ground layer with gaps. (But I'm guessing you have planned something like that already ) Quote Link to comment Share on other sites More sharing options...
tokumaru Posted August 28, 2012 Author Share Posted August 28, 2012 This is great! Such smooth scrolling on the 2600! 2 Quote Link to comment Share on other sites More sharing options...
roland p Posted August 28, 2012 Share Posted August 28, 2012 It should be easy to extend the kernel to individually set the colors for COLUBK and COLUP1 per band. That way you could flip the colors for background and player 1 to make a ground layer with gaps. (But I'm guessing you have planned something like that already ) You mean like the floor in one of the previous demo's? Quote Link to comment Share on other sites More sharing options...
Joe Musashi Posted August 28, 2012 Share Posted August 28, 2012 Yup, exactly. And after that the floor from post #74 That one may not be trivial in combination with the 8-way scrolling because it would require to have a different asymetric playfield per band. Quote Link to comment Share on other sites More sharing options...
totengott Posted September 5, 2012 Share Posted September 5, 2012 id totally buy one of those Quote Link to comment Share on other sites More sharing options...
+Gemintronic Posted September 6, 2012 Share Posted September 6, 2012 As long as it remains a tech demo we're safe. If someone does want to make a real platformer out of this we'll have to name the main character "Sloopy the Wet Dingus" to stay lawyer free. Quote Link to comment Share on other sites More sharing options...
Chilly Willy Posted September 7, 2012 Share Posted September 7, 2012 As long as it remains a tech demo we're safe. If someone does want to make a real platformer out of this we'll have to name the main character "Sloopy the Wet Dingus" to stay lawyer free. I don't think so - have you seen all the Sonic hacks and fangames? Sega hasn't bothered anyone about that, and even bought one (Sonic CD recreation for other platforms). Quote Link to comment Share on other sites More sharing options...
+Gemintronic Posted September 7, 2012 Share Posted September 7, 2012 As long as it remains a tech demo we're safe. If someone does want to make a real platformer out of this we'll have to name the main character "Sloopy the Wet Dingus" to stay lawyer free. I don't think so - have you seen all the Sonic hacks and fangames? Sega hasn't bothered anyone about that, and even bought one (Sonic CD recreation for other platforms). shhhhh... I was trying to get them to name it "Sloopy the Wet Dingus"! Just AGREE! 1 Quote Link to comment Share on other sites More sharing options...
R.O.T.S Posted September 9, 2012 Share Posted September 9, 2012 This is certainly an interesting project,i know with the homebrew scenes there may be some advances in programming techniques but is the sound any different to other atari games?,i mean can we get anything from the A2600 that represents a metalic "rrring!" when something is collected? Quote Link to comment Share on other sites More sharing options...
+Gemintronic Posted September 10, 2012 Share Posted September 10, 2012 This is certainly an interesting project,i know with the homebrew scenes there may be some advances in programming techniques but is the sound any different to other atari games?,i mean can we get anything from the A2600 that represents a metalic "rrring!" when something is collected? I don't think anoyone's assigned themselves this project. Some great programmers have come up with some interesting demos for sure, though. I think MOD music tracker like sound is possible but the tradeoff is the time needed for fancy graphics. Quote Link to comment Share on other sites More sharing options...
Chilly Willy Posted September 11, 2012 Share Posted September 11, 2012 shhhhh... I was trying to get them to name it "Sloopy the Wet Dingus"! Just AGREE! Oh! Um - yes! They're hard-a--es about that. Better change the name. Quote Link to comment Share on other sites More sharing options...
roland p Posted September 15, 2012 Share Posted September 15, 2012 (edited) Trying some more blocks now. the playfield is now 16 blocks high and 16 blocks wide. If you go further, things will start to act strange. I'm not sure about how interesting a level could be... Maybe some longer runs of blocks would help. sloopythewetdingus.bin Edited September 15, 2012 by roland p 4 Quote Link to comment Share on other sites More sharing options...
ntavio Posted September 16, 2012 Share Posted September 16, 2012 I take it that this is only PAL? It rolled on my set. Quote Link to comment Share on other sites More sharing options...
roland p Posted September 16, 2012 Share Posted September 16, 2012 (edited) I take it that this is only PAL? It rolled on my set. No, it's 60Hz and ntsc colors. I'll have to try on real hardware. I streched the screen a bit (less overscan). Edited September 16, 2012 by roland p Quote Link to comment Share on other sites More sharing options...
ntavio Posted September 17, 2012 Share Posted September 17, 2012 No, it's 60Hz and ntsc colors. I'll have to try on real hardware. I streched the screen a bit (less overscan). Do you think I have an issue because I'm using the Harmony cart? Quote Link to comment Share on other sites More sharing options...
roland p Posted September 17, 2012 Share Posted September 17, 2012 Do you think I have an issue because I'm using the Harmony cart? No, I think your Harmony cart is fine. I think a harmony cart doesn't cause games to roll. They either work or don't. Quote Link to comment Share on other sites More sharing options...
roland p Posted June 3, 2014 Share Posted June 3, 2014 Infinite scrolling Sonic demo rom.bin 3 Quote Link to comment Share on other sites More sharing options...
Andromeda Stardust Posted June 3, 2014 Share Posted June 3, 2014 That's awesome! ...but check this out: http://atariage.com/forums/topic/214639-sonic-the-hedgehog-aka-zippy-the-porcupine-demo/?hl=%20zippy%20%20the%20%20porcupine 1 Quote Link to comment Share on other sites More sharing options...
Like us on Facebook
Follow us on Twitter
AtariAge on Instagram
Watch us on YouTube
Chat on Discord
Recommended Posts
Join the conversation
You can post now and register later. If you have an account, sign in now to post with your account.
Note: Your post will require moderator approval before it will be visible.