Someone can fix this Prince of Persia 2 (Proto) Bug?

[LinkueiBR]

post the grafics updates for each stage if you can, will be nice see its look like dos or mac version

A quick preview of the LEVEL 2 that have very accurate graphics to the PC version but the color choices are totally off:

ORIGINAL:


MEGA DRIVE-/-COLOR HACK

[Tony H]

Wow LinkueiBR, your color hack is amazing!

[LinkueiBR]

Wow LinkueiBR, your color hack is amazing!

Thanks a lot Tony!

[mo68K]

I made the code by using a special emulator that lets me record all of the programming that's going on in the background into a log file...

Hi Tony H, do you mind to share the name of the Emulator?

[Tony H]

Hi Tony H, do you mind to share the name of the Emulator?

It's called Gens Tracer. I wrote a "How to" guide for it. Will post links when I get home from work.

Edit: The guide is on my website (The Code Hut).

EDIT2: Gens Tracer: https://gamehacking.org/downloads/Gens2.12aR2Tracer.zip

Gens Tracer guide: http://codehut.gshi.org/GensTracerGuide.txt

Note that McAfee antivirus (and maybe a few others) doesn't like Gens Tracer, so you may have to add an exception.

[mo68K]

It's called Gens Tracer. I wrote a "How to" guide for it. Will post links when I get home from work.

Edit: The guide is on my website (The Code Hut).

EDIT2: Gens Tracer: https://gamehacking.org/downloads/Gens2.12aR2Tracer.zip

Gens Tracer guide: http://codehut.gshi.org/GensTracerGuide.txt

Note that McAfee antivirus (and maybe a few others) doesn't like Gens Tracer, so you may have to add an exception.

I took a look over your website, lots of documents and game genie codes, very nice.

Thank you.

[LinkueiBR]

OFF: I will post this very interesting Prince of Persia 2 "Making of" that to anyone like me that simply loves the 2 classics Prince of Persia games is a most required read.
This document was send by Jordan Mechner to the Developers and is really impressive how accurate the game was!

Check it out:
http://www.jordanmechner.com/downloads/pop2bible.pdf

[Tony H]

A great read. Have never seen this part of the game making process. You can tell that the guy is passionate about the game.

[ComradeOj]

I have been talking with LinkueiBR about fixing up the music in this game.

The original sounds pretty bad, and could really use improvement. Some better instruments could really help.

I have been messing with the game trying to learn how the music works. I have made some progress, but there are still some problems. Mainly, the game enforces its own total operator levels, which makes it hard to drop in replacement instruments.
Ideally, brand new instruments would be substituted for the ones in the game, but for now I have been tweaking the existing ones to make them less harsh.

In the hacked version, I added some stereo separation and changed a few instrument values.

Here are two clips:
Original audio:
https://drive.google.com/open?id=1Gg...FBu5VRxMuc7hyL

Hacked audio:
https://drive.google.com/open?id=1HU...9VFEjU_ttF1ONy

IPS patch:
https://drive.google.com/file/d/1v3g...ew?usp=sharing

The altered version still isn't great, but I think it's at least better. Most notably the melody instruments are overpowering and the drums lack any punch. I'll keep playing with it and see if I can improve it some more.

[Pyron]

Amazing guys, both the color and audio hack, plz keep going

[LinkueiBR]

I have been talking with LinkueiBR about fixing up the music in this game.

The original sounds pretty bad, and could really use improvement. Some better instruments could really help.

I have been messing with the game trying to learn how the music works. I have made some progress, but there are still some problems. Mainly, the game enforces its own total operator levels, which makes it hard to drop in replacement instruments.
Ideally, brand new instruments would be substituted for the ones in the game, but for now I have been tweaking the existing ones to make them less harsh.

In the hacked version, I added some stereo separation and changed a few instrument values.

Here are two clips:
Original audio:
https://drive.google.com/open?id=1Gg...FBu5VRxMuc7hyL

Hacked audio:
https://drive.google.com/open?id=1HU...9VFEjU_ttF1ONy

IPS patch:
https://drive.google.com/file/d/1v3g...ew?usp=sharing

The altered version still isn't great, but I think it's at least better. Most notably the melody instruments are overpowering and the drums lack any punch. I'll keep playing with it and see if I can improve it some more.

MUCH BETTER ComradeOj!
I understand perfectly how it was alocated the FM values but i really don't have an idea how i can find others instruments in the ROM...
EDIT: I discovered and its easy as it seams

Here's how ComradeOj hacked the FM instruments:

2 melody instruments offsets from LEVEL 1: $8aa5a and $8ab5a

load order:
c1o1 detune/mult (same byte)
c1o3 detune/mult
c1o2 detune/mult
c1o4 detune/mult

c1o1 total level
c1o3 total level
c1o2 total level
c1o4 total level

c1o1 keyscale/attack rate (D4=14att 3 ks) KS1= 4X KS2=8X KS3=CX. add att to total
c1o3 keyscale/attack rate
c1o2 keyscale/attack rate
c1o4 keyscale/attack rate

c1o1 decay
c1o3 decay
c1o2 decay
c1o4 decay

c1o1 sustain rate
c1o3 sustain rate
c1o2 sustain rate
c1o4 sustain rate

c1o1 sustain level/release (same byte)
c1o3 sustain level/release
c1o2 sustain level/release
c1o4 sustain level/release

c1 algorithm/feedback

REPEAT FOR ALL CHANNELS order: 1,2,3,4,5,6

Amazing guys, both the color and audio hack, plz keep going

Thank You Pyron!

[Tony H]

All of this is good stuff!!

[LinkueiBR]

Finally completed my Prince of Persia 2 The Shadow and the Flame color hack:

Now i just need to complete my music hack. Unfortunately, this game has a LOT of jingles/fanfares so this is my most complex hacking job ever LOL

[Pyron]

Finally completed my Prince of Persia 2 The Shadow and the Flame color hack:

Now i just need to complete my music hack. Unfortunately, this game has a LOT of jingles/fanfares so this is my most complex hacking job ever LOL

Impressive, very well done, congratulations!

[Silanda]

Nice work!