Alex kidd in Miracle World SMS to Genesis/Megadrive port

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oofwill
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Post by oofwill » Mon May 06, 2013 9:44 am

Thanks :)

oofwill
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Post by oofwill » Thu May 15, 2014 1:04 pm

Hi

After a loss of data, i have completly rewrote my Alex Kidd port, using new features of SGDK 0.95.

First, this was working fine on Fusion & GensKmods.
I test it on my Megadrive, and i have this problem: (with Everdrive)

Image

Then it work on Fusion but not on gens anymore...
Gens crashes after 10 seconds...

What can be the problem? :(

djcouchycouch
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Post by djcouchycouch » Thu May 15, 2014 1:36 pm

Is it always after 10 seconds? Do you need to move around to reproduce? Does it happen if you just let it idle?

Considering that ADDR is 20790101 looks like uninitialized or overwritten memory. Bad pointer or function call?

As a first step, start by disabling parts of your code until you can pinpoint the area causing the problem.

oofwill
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Post by oofwill » Thu May 15, 2014 1:39 pm

I'll do that, thanks.

Gens crashes whatever i do (move, don't move...)
It slows, then it crash...

oofwill
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Post by oofwill » Thu May 15, 2014 2:00 pm

Seems that code make it crash

Code: Select all

SPR_update(&AlexSprite, 1);
Without, it don't crash, but i have no sprite lol

oofwill
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Post by oofwill » Thu May 15, 2014 3:45 pm

It's ok, it's debug features of Gens. They crashed it, i don't know why...

Stef
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Post by Stef » Thu May 15, 2014 6:52 pm

Do you mean that it does not crash anymore on real hardware ? actually you are not the first one to return an address error using the new sprite engine, so maybe there is something wrong with it !

oofwill
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Post by oofwill » Thu May 15, 2014 8:30 pm

Gens doesnt crash anymore.

I don't have tested again on real hardware... (lost my sd card reader ...)

Stef
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Post by Stef » Thu May 15, 2014 11:15 pm

Ok, well i will try to make some tests of the sprite engine on real hardware, to see if it happen again :)

oofwill
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Post by oofwill » Fri May 16, 2014 5:56 pm

Thanks. i will try to test again this weekend ^^

TheMole
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Post by TheMole » Sun May 18, 2014 9:07 pm

Very, very cool.

It looks like you got the player physics to match pretty closely with the original. I'm working on an Alex Kidd port of my own (to a completely different system) and would be interested to know about that part of your implementation, as well as any collision detection related code. Can you tell us a little bit about how you implemented that?

Also, I saw your v2 videos on youtube. That parallax scrolling and those larger levels look awesome. This could be the sequel Alex always deserved but never got :).

Christuserloeser
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Post by Christuserloeser » Mon Sep 08, 2014 2:21 pm

Is this still being worked on?
http://www.DCEvolution.net - Gigabytes of free Dreamcast software for you

Image

oofwill
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Post by oofwill » Wed Oct 08, 2014 10:44 pm

Hi

This project has been paused due to personal problems, but i'm back now and i will work again on it soon!

TheMole: i've not so much time now.
For collision, i just use background table to check if Alex is next to a solid tile or not.

bastien
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Post by bastien » Thu Oct 09, 2014 4:59 am

Yeah that s a good news :D

oofwill
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Post by oofwill » Thu Apr 09, 2015 9:39 pm

Last news!

Working on Alex Kidd again.
It's a new version. i've found a pixel artist and we're working on a sequel to Miracle World.

You could see first level HERE

For détails:
- New dress code for Alex
- New animation when not moving
- Animation when breaking elements
- Animation when dying
- Alex can now pick up item with his hand

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