Sonic the hedgehog?

[golem]

Utter ****e that has no purpose or value... I believe this is often referred to as black eyed peas... But I doubt anyone actually listens to that.

Ha ha. Well said bloodline. I never like posting in order to express dislike or negative emotions but I make exception for the Black Eyed Peas (maybe it's just because I'm becoming an old man!)

[Mrs Beanbag]

Not when you want a parallax effect without using dual playfield, which limits you to 7 colours on the foreground.
 
You can use 2 bitplanes for the background and 4 for the foreground in EHB and scroll the whole screen with the scroll registers but you have to shift the background the opposite way to compensate. That gives you 4 background colours, 7 foreground colours but also another 7 that are dimmer. You can also use half brite in the foreground layer to dim the background.

This is possible, but did anybody ever do that?  I believe Robocod used a single bitplane for a background parallax layer.  You can also do transparencies this way if you set the palette up right.

It is possible to scroll each bitplane independently vertically.  Mr Beanbag's title screen does that.

[bloodline]

No blitting is required on the background layer.  The copper can be used to scroll each scanline sideways independently.

Hmmm, you know I had totally forgotten about that little trick! Well spotted

[bloodline]

Ha ha. Well said bloodline. I never like posting in order to express dislike or negative emotions but I make exception for the Black Eyed Peas (maybe it's just because I'm becoming an old man!)

I can tolerate most music... But I draw the line at black eyed peas.

[Cammy]

Here's the first half of Green Hill Zone Act 1 recreated in Backbone with Rebel's Sonic pack and using Tricky's music. Just extract it and double-click the icon to play, but remember this was made with Backbone, not coded properly and suffers from all of Backbone's limitations.

http://home.exetel.com.au/~amiga/Sonic.lha

[Mrs Beanbag]

Here's the first half of Green Hill Zone Act 1 recreated in Backbone

Do I need to install Backbone to run this, or is it stand-alone?

[jj]

Sorry to go OT Here.  But when it comes to music its very easy to dismiss a genere.  I like pretty much all music, from martha tilston to pantera.  I am not massive fan of techno , Hardcore but to say it involves no talent  to create is very short sited.
 
I am am a fan of trance, house and very recently DnB, especially the output of Hospital records and artists like london elektricity, high contrast (Cardiff boy like me ) and camo and krooked.  Music is of a very peronal taste.
 
To do any music well takes talent, even the crap chart music of the last 30 years. But as bloodline said there are even examples of talent and genius there.  To be a muscian of some time does not make you able to produce good music.
 
I know some very talented musicians, but they can't write decent music for toffee.
 
I would just like to end with the fact that 3 years ago I had the mis fortune to hear, not watch, the black eyed peas in Glastonbury.  They were truly awful.

[Cammy]

Sorry, this package is stand-alone, just run it from Workbench 3.x. Some people have complained that the game won't run and requires lowlevel.library, so I'm going to try and fix up a version that doesn't use any CD32 buttons and upload it soon.

In the meantime, here's a screenshot of the Workbench from the A1200 we're building this Sonic game on:

[psxphill]

This is possible, but did anybody ever do that? I believe Robocod used a single bitplane for a background parallax layer. You can also do transparencies this way if you set the palette up right.
 
It is possible to scroll each bitplane independently vertically. Mr Beanbag's title screen does that.

robocod cheats heavily by having a repeating pattern across the screen.
 
Pick your pattern correctly and you only need one copy of it in memory as well (you just need 16 patterns across the screen each starting on a seperate bit boundary). Then you just need enough blank space above and below so you don't have to be move the copper split & a screens worth to the right so offset 15 wraps to 0 etc.
 
Vertical is easy as you have a pointer for each bitplane, the trick is to use them for horizontal scrolling.

[Mrs Beanbag]

I've got Mr Beanbag running around in Green Hill Zone now.  I've also converted some of the bad guy's sprites so I'll add them in next.  I could do with a few more frames of animation though, I've only been able to get static images of each character from screenshots.

The hardest thing to do is going to be loops.  But... I'll cross that bridge when I come to it.

[carvedeye]

Sorry, this package is stand-alone, just run it from Workbench 3.x. Some people have complained that the game won't run and requires lowlevel.library, so I'm going to try and fix up a version that doesn't use any CD32 buttons and upload it soon.

In the meantime, here's a screenshot of the Workbench from the A1200 we're building this Sonic game on:

Awesome i look forward to it being finished

[Mrs Beanbag]

Do I need to install Backbone to run this, or is it stand-alone?

Just played it, it's pretty good, where did you get the sprites?  I somehow managed to fall off the level :roflmao:

His jumping action is pretty weird, he just goes straight up and then comes straight back down again, I guess this is backbone's fault.  He seems to have sideways inertia though.

[bbond007]

Just played it, it's pretty good, where did you get the sprites?  I somehow managed to fall off the level :roflmao:

His jumping action is pretty weird, he just goes straight up and then comes straight back down again, I guess this is backbone's fault.  He seems to have sideways inertia though.

here are some more sonic sprites

http://biggysprites.smackjeeves.com/comics/573428/sonic-sprites-sonic-advence/
http://www.freewebs.com/nigahog/Sonic%203%20sprites/Sonic%20Action%20Stage.png

[Rebel-CD32]

You can get the original Mega Drive sprite rips for Sonic and some of the other objects in the game from this site: http://sdb.drshnaps.com/system.php?sys=3
More Mega Drive sprite rips here: http://www.spriters-resource.com/genesis/sonicth1/index.html
You can get level layout rips from here: http://www.vgmaps.com/Atlas/Genesis/index.htm
Here's a full study of Green Hill Zone: http://soniczone0.com/games/sonic1/greenhill/
A page explaining the use of shapes throughout Sonic levels: https://sites.google.com/site/sonicgraphicsguide/sonic-graphics-guide
And some Sonic Fangame forums: http://www.sonicfangameshq.com/forum/index.php and http://forums.sonicretro.org/

[Cammy]

I wonder if anyone with some spare time who might want to help out with these Sonic fangames might want to rip some of the fonts from the Sonic games and make them into real Amiga fonts, or ColorFonts even, using ColorType? It's as easy as using Personal Paint and picking up a brush, since ColorType was made by the same guys who made PPaint. I would probably end up doing it myself eventually but I have a whole bunch of Amiga projects on my plate at the moment so it might take a while to get around to it.

Anyone could use the fonts in their own games or even on Workbench afterwards if someone could rip them and upload them! The HUD font would be the most useful since it's the one that is onscreen throughout the game.

Here's a link to ColorType:  http://aminet.net/package/biz/cloan/ColorType

[Cammy]

If anyone would like to try the latest half-level demo of Sonic the Hedgehog on their Amiga I have just uploaded a new archive  http://amigachristmastree.ultimateamiga.co.uk/SonicBackboneDemo.lha

Here's a video of an earlier version:
[YOUTUBE]OxPOZu-fpsw[/YOUTUBE]