Fixing Strider sprite - Page 3

Galahad/FLT · 16 April 2018, 19:00

Quote:

Originally Posted by viddi

Brilliant.

I have an original copy of Strider. But all I can do is trying to make an ADF or DMS archive...

Strider is MFM as far as I recall.

Galahad/FLT · 16 April 2018, 19:03

Quote:

Originally Posted by ross

Hi Denis, there's an easy solution to manage/modify/save this image format on Amiga or PC?

[file 00000085 seems a PC1 file but an error in open is signaled.., i've to check from original floppy image]

I have written a PC1 to IFF converter if thats any help.

dlfrsilver · 16 April 2018, 19:34

Quote:

Originally Posted by Galahad/FLT

I have written a PC1 to IFF converter if thats any help.

There's no need in fact, they have buried the files as it is directly in the MFM encoding.

More straight port, you can't beat that lol !

ross · 16 April 2018, 20:12

Quote:

Originally Posted by dlfrsilver

I have renamed by comparing the ST file names the unnamed Amiga files :

So the ST files and Amiga files are *exactly* the same?
How ST manage the unaligned sprite? Or suffer also garbage on screen like the Amiga version?

Quote:

Originally Posted by Galahad/FLT

Strider is MFM as far as I recall.

Yes MFM, but is really simple to extract the hidden files (loader at $988);
the VT DOS/0 cracked version contain files named like 000000xx, where xx is the indexer used in original loader.

Quote:

Originally Posted by Galahad/FLT

I have written a PC1 to IFF converter if thats any help.

Do you have also IFF->PC1 converter?
My goal is a full PC1->editor->PC1 just to be fast but even a double conversion is acceptable

grafx2 works as expected but with a problem: repacked file are ~2K bigger so there is some floppy space concern..
I have not checked if he messes up with the bitplanes.
Maybe I'll rewrite a Packbit for the body part of Degas format.

or make my format.

dlfrsilver · 16 April 2018, 22:31

Quote:

Originally Posted by ross

So the ST files and Amiga files are *exactly* the same?
How ST manage the unaligned sprite? Or suffer also garbage on screen like the Amiga version?

=> they are yes, exactly the same.

i don't know for the unaligned sprites. to be honest i have not seen the strider sprite bug.

What do you need ? PC1 files, CHR files or PRG.BIN ?

ross · 16 April 2018, 23:06

If files i've are not damaged i'm fine. I've attached a txt with their md5 checksums.
But if you can upload all yours ST ones to the Zone!, I can double check them

Thanks.

Codetapper · 16 April 2018, 23:24

Quote:

Originally Posted by ross

Yes, can be made

No, WHDLoad for cracked copy is not accepted (there can be some exception due to lack of working original but this is not the case).

Well, like usual I do not have much free time (and the weekend has flown) but I see what I can do

I usually try and support a cleanly cracked game if there is one, but in Strider's case the versions out were probably all so butchered I didn't bother. Many of my installs support the Quartex cracked versions as Robin cracked them cleanly so the disk images often match what you'd rip from the WHDLoad one.

I am happy to add your fixes into the WHDLoad version and/or send you the source if you need it.

malko · 16 April 2018, 23:33

Quote:

Originally Posted by Codetapper

I usually try and support a cleanly cracked game if there is one, [...] I am happy to add your fixes into the WHDLoad version and/or send you the source if you need it.

Excellent news

demoniac · 17 April 2018, 02:58

Quote:

Originally Posted by ross

I'm using the internal sprites renderer to find the garbage.

Notice this frame

So it's not only some black pixels in slope positions..

I remember seeing this before. I wasn't sure if it was the first game or the sequel.

ross · 17 April 2018, 12:09

Quote:

Originally Posted by Codetapper

I am happy to add your fixes into the WHDLoad version and/or send you the source if you need it.

Quote:

Originally Posted by demoniac

I remember seeing this before. I wasn't sure if it was the first game or the sequel.

Sure first game

ross · 17 April 2018, 18:24

Interesting.
I took some time to extract the files from the original disk (I did not totally believe in this cracked version, that's why I asked Denis for a double check).

And there is some difference:
- files 4b, 36, 64, 72, 85 have few different bytes;
- file a1 is really file 97 (and on this I would have bet since the game does not use 81 tracks);
- 9e is really file 94 (another easy bet because cylinder 79 is the "protection", a simple low/upper tracks unbalanced written bitcells speed check).

So cracked files 94 and 99, the Degas 32066 bytes PI1 files with zero-forced header color data, are not used (anyway they contain garbage).
Where did those files come from? A different version of the original disk? A prerelease? An error in data extraction?

Attached md5 from original files.

[EDIT:]
Buried somewhere there are also original Amiga files names,
in sector position order, so is simple to reassociate.

Code:

bstrider.prg
graphics/amsht1b.pc1
graphics/amsht2b.pc1
graphics/amsht3b.pc1
graphics/border.pc1
graphics/amsht6b.pc1
graphics/amdsht1a.pc1
graphics/chr1.cr
graphics/map1.chr
graphics/level1.tab
graphics/dsheet2a.pc1
graphics/chr2.cr
graphics/map2.chr
graphics/level2.tab
graphics/dsheet3a.pc1
graphics/chr3.cr
graphics/map3.chr
graphics/level3.tab
graphics/dsheet4a.pc1
graphics/chr4.cr
graphics/map4.chr
graphics/level4.tab
graphics/dsheet5a.pc1
graphics/chr5.cr
graphics/map5.chr
graphics/level5.tab
graphics/title.pc1
graphics/panel.dta

dlfrsilver · 18 April 2018, 00:27

Oh perfect ! So this fucking game has real files

!

dlfrsilver · 18 April 2018, 00:28

Quote:

Originally Posted by ross

Interesting.
I took some time to extract the files from the original disk (I did not totally believe in this cracked version, that's why I asked Denis for a double check).

And there is some difference:
- files 4b, 36, 64, 72, 85 have few different bytes;
- file a1 is really file 97 (and on this I would have bet since the game does not use 81 tracks);
- 9e is really file 94 (another easy bet because cylinder 79 is the "protection", a simple low/upper tracks unbalanced written bitcells speed check).

So cracked files 94 and 99, the Degas 32066 bytes PI1 files with zero-forced header color data, are not used (anyway they contain garbage).
Where did those files come from? A different version of the original disk? A prerelease? An error in data extraction?

Attached md5 from original files.

[EDIT:]
Buried somewhere there are also original Amiga files names,
in sector position order, so is simple to reassociate.

Code:

bstrider.prg
graphics/amsht1b.pc1
graphics/amsht2b.pc1
graphics/amsht3b.pc1
graphics/border.pc1
graphics/amsht6b.pc1
graphics/amdsht1a.pc1
graphics/chr1.cr
graphics/map1.chr
graphics/level1.tab
graphics/dsheet2a.pc1
graphics/chr2.cr
graphics/map2.chr
graphics/level2.tab
graphics/dsheet3a.pc1
graphics/chr3.cr
graphics/map3.chr
graphics/level3.tab
graphics/dsheet4a.pc1
graphics/chr4.cr
graphics/map4.chr
graphics/level4.tab
graphics/dsheet5a.pc1
graphics/chr5.cr
graphics/map5.chr
graphics/level5.tab
graphics/title.pc1
graphics/panel.dta

File 94 and 99 are unused files with header shopped off.

ross · 18 April 2018, 07:45

Quote:

Originally Posted by dlfrsilver

Oh perfect ! So this fucking game has real files

!

Upped to the Zone!
Just for historical value or to aid fix some slaughtered tosec versions.

dlfrsilver · 18 April 2018, 08:12

Quote:

Originally Posted by ross

Upped to the Zone!
Just for historical value or to aid fix some slaughtered tosec versions.

I have already all the buggy ADF version fixed, because i found the faulty file.

It's file 3A

ross · 19 April 2018, 21:33

Ok, I took a decision on it.

Because:
- all "files" versions are based on Vision Factory crack that surely is from a pre-release or a leak (code/structure/raw data are somewhere different from retail),
- Quartex crack have some timing problem,
- Flashtro crack is a bit bugged and visually glitching,
I'll do my (little)enhanced cracked/trained ADF (and a successive WHDLoad version).

In the meantime i've fully patched sprites errors (a pain..).
I've even partially redraw a frame by hand, there was no alternative.

I hope this also does not pile up with other unfinished stuff

Galahad/FLT · 19 April 2018, 21:43

Quote:

Originally Posted by ross

Ok, I took a decision on it.

Because:
- all "files" versions are based on Vision Factory crack that surely is from a pre-release or a leak (code/structure/raw data are somewhere different from retail),
- Quartex crack have some timing problem,
- Flashtro crack is a bit bugged and visually glitching,
I'll do my (little)enhanced cracked/trained ADF (and a successive WHDLoad version).

In the meantime i've fully patched sprites errors (a pain..).
I've even partially redraw a frame by hand, there was no alternative.

I hope this also does not pile up with other unfinished stuff

Might I suggest that if you're going to do that, do Strider 2 at the same time and stick them on the same disk?

Both compress to fuck all.

DamienD · 19 April 2018, 21:47

Quote:

Originally Posted by Galahad/FLT

Might I suggest that if you're going to do that, do Strider 2 at the same time and stick them on the same disk?

Nooooooooo, IMHO multiple games on disk suck

ross · 19 April 2018, 21:55

Well, first I finish the single version then we'll see

malko · 19 April 2018, 22:45

Did like the arcade version but not so much the Amiga one...
However a game having the "ross touch" is worth a rethink.

Quote:

Originally Posted by ross

Ok, I took a decision on it. [...]
I'll do my (little)enhanced cracked/trained ADF (and a successive WHDLoad version).
In the meantime i've fully patched sprites errors (a pain..).
I've even partially redraw a frame by hand, there was no alternative. [...]

ross, I am admire you

(hope it has the same meaning in English as in French )

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18 April 2018, 00:27	#52
dlfrsilver CaptainM68K-SPS France Join Date: Dec 2004 Location: Melun nearby Paris/France Age: 46 Posts: 10,412	Oh perfect ! So this fucking game has real files !

19 April 2018, 21:33	#56
ross Defendit numerus Join Date: Mar 2017 Location: Crossing the Rubicon Age: 53 Posts: 4,468	Ok, I took a decision on it. Because: - all "files" versions are based on Vision Factory crack that surely is from a pre-release or a leak (code/structure/raw data are somewhere different from retail), - Quartex crack have some timing problem, - Flashtro crack is a bit bugged and visually glitching, I'll do my (little)enhanced cracked/trained ADF (and a successive WHDLoad version). In the meantime i've fully patched sprites errors (a pain..). I've even partially redraw a frame by hand, there was no alternative. I hope this also does not pile up with other unfinished stuff

19 April 2018, 21:55	#59
ross Defendit numerus Join Date: Mar 2017 Location: Crossing the Rubicon Age: 53 Posts: 4,468	Well, first I finish the single version then we'll see

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