[Neoblast]

Hello there, I started a sonic game project on Dreamcast ( using C/C++ and SDL ) a few months ago, I have nearly all subsystems ready, vmu saving and loading, storyline and even some artwork of it. Point is I don't know much about sonic engines as there are not a lot of info on the net. Could anyone help me finding a basic sonic engine in C/C++ or help me build the basics of it?

Thanks in advance

PS: all sonic games I've found aren't open source so it's a bit difficult, I've looked everyhwere

This post has been edited by Neoblast: 16 November 2008 - 10:01 AM

[Shibunoa]

I can't help you building a Sonic engine (I dunno how to do it), but I searched for the same thing as you (open source Sonic-like engine) some months ago, only to fail miserably. You're better off writing it yourself.
Starting points, you'd want? The collision arrays of Sonic 1 and 2, will get a good idea in your head when it comes to collision.

It's nice that you're trying to do a Sonic game for the Dreamcast. I'm actually trying to port Sonic 1 to the PSX.

This post has been edited by Shibunoa: 16 November 2008 - 12:44 PM

[Sik]

Maybe this can help?

[GIHunter]

Here is a good Sonic engine for Game Maker, made by Dekoldrick.

[Neoblast]

Thing is I don't use game maker nor multimedia fusion. I'm talking about a full fledge game made in SDL and C++.
Hmm anyone can help?

[Cinossu]

If you're looking for a simple copy&paste job, no. If you want to do things properly, go look at a disassembly and work your way through it chunk by chunk.

[Stealth]

Ugh. You don't want "help", you want someone to do it for you. I got both of your PMs, and that's exactly why I never responded to either of them. Your first was in May, for god's sake, and you haven't got ANYWHERE?

Listen, it's not hard to follow the code in the current disassemblies, and there have been several threads on this forum touching on how different parts of it work. If you need something straightforward, there do exist other alternatives, such as the highly commented Project Mettrix scripts I built for E02, based heavily on the functionality of the original games. Also, I haven't personally had a look at any of these "opensource" TGF/GM/etc engines, but there are many, and regardless of the level of commentation in each one, they at least provide a different perspective on the same methods, and to someone who wasn't just looking to grab some pre-made code that they could slap directly onto their target system, could possibly be helpful in determining just exactly what is going on

Also, for future reference, I'm not tempted by promises of "ports". I'll do my own, thanks, and I'm pretty sick of people thinking it's an easy way to grab at my code, because you're far from the first to try. If all you're interested in is strictly a port of my software to a different system that I don't personally have the resources for, then I would appreciate very much if you provided or helped to provide me with those resources. Otherwise, no thanks.

[Sik]

Cinossu, on Nov 17 2008, 01:17 AM, said:

If you're looking for a simple copy&paste job, no. If you want to do things properly, go look at a disassembly and work your way through it chunk by chunk.

Wouldn't porting the code straight from a disassembly be sorta kind of copy and paste too? I mean, with your criteria, to do things properly he should figure out how to do the entire engine himself without looking at anything already made at all >_>

[Shibunoa]

I wouldn't look at a disassembly. It taints my code if I even wanted to use it for something else than a sonic fangame.
Also, it isn't very hard to figure how something is done, I had no idea how to make a tetris game and yet I made one by seeing how stuff acted.

This post has been edited by Shibunoa: 17 November 2008 - 09:04 AM

[Sik]

Programming a Tetris engine doesn't require you knowing trigonometry, you know...

[Cinossu]

Sik, on Nov 17 2008, 11:59 AM, said:

Cinossu, on Nov 17 2008, 01:17 AM, said:

If you're looking for a simple copy&paste job, no. If you want to do things properly, go look at a disassembly and work your way through it chunk by chunk.

Wouldn't porting the code straight from a disassembly be sorta kind of copy and paste too? I mean, with your criteria, to do things properly he should figure out how to do the entire engine himself without looking at anything already made at all >_>

Let me rephrase: literal copy&paste job. :P

[Krigo]

Neoblast, on Nov 16 2008, 02:58 PM, said:

Hello there, I started a sonic game project on Dreamcast ( using C/C++ and SDL ) a few months ago, I have nearly all subsystems ready, vmu saving and loading, storyline and even some artwork of it. Point is I don't know much about sonic engines as there are not a lot of info on the net. Could anyone help me finding a basic sonic engine in C/C++ or help me build the basics of it?

Thanks in advance

PS: all sonic games I've found aren't open source so it's a bit difficult, I've looked everyhwere

Didn't reply to this because I thought no one else was going to, but now people are I've remembered what I was going to say.

Your wanting people to do the main core of the engine for you? Sure, having a storyline and artwork is fine but if you let other people do the work you're not going to go ANYWHERE.

EDIT: I just realized who this is, I haven't spoke to you for ages :P

I think reading the disassembly and going from there will be the best idea.

This post has been edited by Krigo: 17 November 2008 - 01:45 PM

[Neoblast]

Where could I get the dissasembly then?

Thanks for NOT replying Stealth but I do not want anyone to do the work for me at all, if that's the impression I gave then I expressed myself wrong. I just want some help with the physics. I do not want ANY line of code written by someone else just a few tips. The idea for the project started on may but it was cancelled due to personal issues. I also mentioned that porting could be a chance but in case you didnt want to I said if you could help me get the BASICS of all the physics. I have some stuff but I want to make things properly and it's missing a lot of things.

Could you at least tell me where to find those Mettrix scripts you made for E02?

This post has been edited by Neoblast: 18 November 2008 - 04:48 PM

[Polygon Jim]

Disassemblies are in the big sticky right above here....
http://forums.sonicr...?showtopic=9742

[Stealth]

Neoblast, on Nov 18 2008, 01:44 PM, said:

Could you at least tell me where to find those Mettrix scripts you made for E02?

http://stealth.emulationzone.org/Games/E02...trix-SAGE08.rar

I know what I was asked, and this thread was pretty suspect. Maybe you didn't know what you were asking for?
Anyway, this is all more than most of the rest of us had to go by, so you should be able to get something decent out of it. Don't forget to credit the authors of your resource materials