Sonic the Hedgehog, a question for coders

[ParanoiaDragon]

Was thinking today, (since I've been doing some game planning), could Sonic 1 be done on the Turbo, if ALL the tiles were squared off?  It'd maybe be ugly looking with everything squared off, but, that's not what I'm concerned about, just wondering if the paralax(both horizontal & vertical) could all be pulled off that way?

[Arkhan]

listen it was on the master system.

it can be done on the turbo.

and yeah the parallax would be doable I think.  You'd have to plan very carefully

[touko]

Yes PD, xavier always works above .

But as many changes was made on game engine, the project progress slowly ..
Several parts had to be rewriten in asm for improving performances.

First level is completed.

Parallax are included of course  , and perhaps a copper like effect.

[ParanoiaDragon]

The last demo I played of Xavier's Sonic, did have paralax, but it was different then the Genesis version IIRC, that's one reason why I was asking.  I'd maybe have to go back & find that demo again & play it.

[nat]

It was different in that it used the SMS Sonic graphics instead of the Genesis Sonic graphics. Yeah, it had parallax but the sprites and tiles were from the SMS. I think it was simply because the SMS version of the game ran at a lower resolution than the Genesis version and was "easier" to port somehow. I could be wrong on this though, because it seems to me that the the Turbo can definitely handle whatever resolution the Genesis version was running at.

I remember being relatively unimpressed with that demo last time I played it (a decent number of years ago, now).

[ccovell]

There is a version of the demo (11/9/2008 or later) that looks almost identical to the Genesis version, with some good horizontal parallax.  But getting a smooth-running game with vertical parallax, with the sparkly ocean & trees in the background, moving at a different rate from the entire foreground, is too much to ask from the PCE, IMO.  For two layers of scrolling/warping backgrounds, plus sprites, really a single-background VDP like the PCE's doesn't suffice.

[nat]

The demo I played was definitely dated before 2008. Where can I find the 2008 version?

[ParanoiaDragon]

Yeah, IIRC it was the SMS version I played, don't recall playing one that looked more like the Genny version.

[ParanoiaDragon]

Was thinking, instead of doing vertical paralax, what if the vertical part was static, like the bg's in the PCE Ninja Gaiden?  Would that be easier/possible??

[Arkhan]

Was thinking, instead of doing vertical paralax, what if the vertical part was static, like the bg's in the PCE Ninja Gaiden?  Would that be easier/possible??

yeah.  vertical paralolx is the hard part.  if you get rid of it, everythings easier. 

[touko]

Verticals parallaxes are not more complicated than horizontal ..

Mixing both, is the real hardest part IMO ..

[Arkhan]

Verticals parallaxes are not more complicated than horizontal ..

Mixing both, is the real hardest part IMO ..

thats what I meant.  The horizontal is already a given since its a platformer.  Mixing in shit moving up and down is going to be tricky work both art and code wise.

[fragmare]

Kind of off topic, yet on topic too... if anybody plans on doing anything else with this demo, or another Sonic demo entirely, I made this quite a long time ago...

It's basically a custom sprite set for Sonic.  I started out ripping the frames from Sonic CD, but ended up using everything from Sonic, Sonic CD, Sonic 2 and even Sonic 2 beta version.  I also did quite a bit of tweaking and color editing in order to get the ultimate Sonic sprite sheet.  I didn't use Sonic 3 simply because I've never been a fan of how that version of Sonic looked.

Anyway, if someone ever makes another PCE Sonic demo, this might come in handy. 

[touko]

Wahou, a little bit too late, but this sprites are wonderfull  ..

After galaxian i have another project,is to port an improved version of international karate  ..
If you're interested to draw some sprites and read my very bad english :-" ..

[Vecanti]

There is a version of the demo (11/9/2008 or later) that looks almost identical to the Genesis version, with some good horizontal parallax.

Anyone have a download of this?