20 January 2013, 12:18 | #101 | |
Going nowhere
Join Date: Oct 2001
Location: United Kingdom
Age: 50
Posts: 9,016
|
Quote:
|
|
21 January 2013, 08:54 | #102 | |
son of 68k
Join Date: Nov 2007
Location: Lyon / France
Age: 51
Posts: 5,351
|
Quote:
My experience with Gauntlet has shown that a 68000 seems to be able to do one frame out of three but the game is slow. Updating only part of the screen requires to know what part to update, and it's not easy. |
|
21 January 2013, 09:32 | #103 | |
Going nowhere
Join Date: Oct 2001
Location: United Kingdom
Age: 50
Posts: 9,016
|
Quote:
|
|
21 January 2013, 12:44 | #104 | ||
Registered User
Join Date: Nov 2012
Location: London, UK
Posts: 12
|
Quote:
Quote:
Now it seems that you are an expert on porting ST games to the Amiga, so maybe a good thing to do would be to document these things on an Amiga coding wiki somewhere. As for the graphics rendering issues, surely it is possible to replace the Atari graphics routines with Amiga graphics routines? Find the software blitting routines in the ST codebase, and patch them to call your own blitting routines that make use of the Amiga hardware - even up to the point of having the graphics stored in an Amiga optimised format rather than an ST optimised format. As for the music, maybe the best option is to redo it as an Amiga .mod and integrate a mod player into the game code, and patch the game music player. Leave a channel free for sound effects. Maybe this sounds complex, but people have ported 8-bit games between systems with the same CPU in this fashion, just keeping the core game engine intact. Last edited by prowler; 21 January 2013 at 22:25. Reason: Back-to-back posts merged; please use multi-quote. |
||
21 January 2013, 15:24 | #105 | |
Thalion Webshrine
Join Date: Jan 2004
Location: Oxford
Posts: 14,448
|
Quote:
As long as Galahad doesn't see it as offensive I think you'd be amazed how well "I bet you can't do XXXX!" will motivate some coders I for one would like to see it go forward. I loved this game on my Spectrum. If not I can always dig out my Atari. Last edited by prowler; 21 January 2013 at 22:26. Reason: Fixed quote. |
|
21 January 2013, 15:31 | #106 | |
Registered User
Join Date: May 2001
Location: ?
Posts: 19,646
|
Quote:
"I don't care" is the answer to your question. There are people doing stuff with the Amiga (like you) on their spare time and out of pure love for the platform. I would love stuff to get released but at the same time I have no right to bitch at any of them for never releasing it, cancelling it or just simply losing interest in said projects. That would be extremely hypocritical and also totally unfair and rude. |
|
23 January 2013, 08:48 | #107 | ||||||||
son of 68k
Join Date: Nov 2007
Location: Lyon / France
Age: 51
Posts: 5,351
|
Have you not understood what I explained ?
Quote:
Quote:
Quote:
Quote:
Quote:
Quote:
Quote:
Quote:
Btw you can write "i believe you will not do it" in any of my project threads, i won't care. Believe what you want, no problem. So please stop blaming me on just writing my opinion here. |
||||||||
23 January 2013, 09:46 | #108 |
Walk Off? Boolander!
Join Date: Aug 2012
Location: Gladstone Australia
Age: 48
Posts: 628
|
Your flogging a dead horse Meynaf and adding nothing constructive to this thread apart from arguments, just leave it be mate!
|
23 January 2013, 18:03 | #109 |
Global Moderator
Join Date: Nov 2001
Location: Derby, UK
Age: 48
Posts: 9,355
|
hansel75 drop it please. Meynaf the issue isn't wjat you meant, it's what you was saying, and how you was saying it..
Now guys this has been resolved. Everyone let it go please or I will start deleting posts and issuing warnings! |
23 January 2013, 18:59 | #110 |
Moon 1969 = amiga 1985
Join Date: Apr 2007
Location: belgium
Age: 48
Posts: 3,913
|
relax everybody,
goodluck for your work Galahad. And if you can help meynaf, it's great too. ps: perhaps one day a genesis game conversion !!!!! great challenge for sure |
24 January 2013, 09:50 | #111 |
son of 68k
Join Date: Nov 2007
Location: Lyon / France
Age: 51
Posts: 5,351
|
Maybe. But there are many other similar projects. I'm not sure several people can be more efficient than one when it's only about code, so for now i'll look if game Oids can be done (apparently several people want this one). Anyone, PM me if you have a link to an uncracked version in .ST (not .STX) format...
Great challenge indeed. These games aren't simple executables with relocs inside, and both the screen format and the FM synth chip really don't help ! |
24 January 2013, 09:55 | #112 | |
Registered User
Join Date: Jul 2008
Location: California
Posts: 184
|
Quote:
And to be honest, with Super Sprint it's a better idea to try and port the arcade version directly. The AI would be better, the music would be better and the graphics would certainly be better. It'd need AGA though. And it'd be a lot harder given the oddball DEC CPU it used. |
|
24 January 2013, 10:06 | #113 | |
Registered User
Join Date: Aug 2005
Location: Skarabörg, Sweden
Age: 45
Posts: 1,028
|
Quote:
|
|
24 January 2013, 10:17 | #114 |
son of 68k
Join Date: Nov 2007
Location: Lyon / France
Age: 51
Posts: 5,351
|
|
24 January 2013, 12:32 | #115 | |
Old fart
|
Quote:
http://eab.abime.net/showthread.php?t=67425 |
|
25 January 2013, 08:11 | #116 |
Retro Freak
Join Date: Nov 2001
Location: Slovenia
Age: 51
Posts: 1,665
|
Starquake might be very simple to port too... since it is a turn-screen adventure with not much going in But one hellua game.... always wanted to play that on the Miggy.
|
25 January 2013, 11:20 | #117 |
Amiga freak
Join Date: Jul 2001
Location: Netherlands
Posts: 351
|
Funny. Starquake was the first game that came to my mind. I have the game on my Atari ST 520 (which I haven't turned on for 10 years). I liked the game although is't a bit difficult to play. I have the original (from a compilation pack of 20 ST-games).
Crack'ed also was a nice simple game. |
09 October 2013, 21:05 | #118 |
Zone Friend
Join Date: Jun 2006
Location: Gargore
Age: 44
Posts: 17,789
|
|
12 January 2014, 01:59 | #119 |
Going nowhere
Join Date: Oct 2001
Location: United Kingdom
Age: 50
Posts: 9,016
|
Thread necromancy ahoy!
Well, now that Putty Squad and other shit is out the way, I thought i'd return to this one. I now have it running independant of WHDLoad At the moment it requires any 1meg Amiga minimum, I know the original Atari ST release was 512k, but because of the way this game is being converted, I simply don't have the available memory in 512k to fit all game data, Atari ST screen and Amiga screen with copperlist and all the other Amiga stuff. Its not much of a problem considering most Amiga owners had 1meg in any case, so its not really a problem. So, I was worried that the game would be too slow, well actually, running in WinUAE in an A500 setup with exact timing, i've compared it to a video of the Atari ST version running on YouTube, and it doesn't look discernably slower at all, which frankly amazes me. Also the ingame screen is smaller than 320x200, so I will be able to optimize my screen conversion routine to be quicker because it will have less data to convert, but that can wait for the moment. I can now use joystick and move around the map and its going as expected. Theres a crash that occurs if I leave the game to sit there, but I think thats simply a memory overlap problem that will be cured in due course. The music in the game is shit, but, if anyone feels like doing a small 4 channel Protracker module, that would be good. The game originally stored all the graphics in lower chip mem, well i've transferred that all to fast memory/extra memory so that I had enough room in chip ram for the Amiga screen. I also still have over 100k free, but would obviously like something smaller incase of problems, as i'm running out of memory below the game area for my code to do joysticks, keyboards and all that fun stuff, so if anyone feels like being useful, that would be great to get something running |
12 January 2014, 03:22 | #120 |
Going nowhere
Join Date: Oct 2001
Location: United Kingdom
Age: 50
Posts: 9,016
|
Ingame keyboard and joystick all working.
Now all ingame menus work, even the German selection on the title page. Fire button now does something, all keyboard presses work as they should. You can now pick up stuff and give it to characters and move around the sub menus as well. Walking around the map hasn't produced any problems so far, other than its a bigger game than I realised! |
Currently Active Users Viewing This Thread: 1 (0 members and 1 guests) | |
Thread Tools | |
Similar Threads | ||||
Thread | Thread Starter | Forum | Replies | Last Post |
Ugly Ass Atari St Doom conversion | Fred the Fop | Retrogaming General Discussion | 18 | 07 May 2016 21:22 |
Super Sprint - Atari ST Conversion | Galahad/FLT | Retrogaming General Discussion | 83 | 12 March 2012 21:34 |
Old Atari ST ? Game...not sure if there was an Amiga conversion.. | HCF | Looking for a game name ? | 14 | 17 October 2004 17:43 |
EBAY Amiga / Atari ST / Atari 2600 stuff | Eggsplosion | MarketPlace | 0 | 09 October 2004 21:01 |
|
|