The PokéCommunity Forums Fan Games ROM Hacking Research & Development
Research Dealing with Colors! (Gameboy Advance & Gameboy Color)

Research & Development Got a well-founded knack with ROM hacking? Love reverse-engineering the Pokémon games? Or perhaps you love your assembly language. This is the spot for polling and gathering your ideas, and then implementing them! Share your hypothesis, get ideas from others, and collaborate to create!

Thread Tools
Old December 6th, 2007 (2:23 AM).
Coolboyman's Avatar
Coolboyman Coolboyman is offline
Veteran Hacker
Join Date: Sep 2003
Location: The East Bay
Age: 29
Gender: Male
Nature: Bold
Posts: 471
Each palette has 2 bytes that tells it's color. You need to basically add up the values, so if you want 31 Red, you need to use 1F00. More of a color is lighter, and less of it is darker. You can find out what colors the game uses using the palette viewer in Visual Boy Advance. To find them, you need to flip the two variables displayed (if it's 5A27 then search for 275A)

01 = R + 1
02 = R + 2
04 = R + 4
08 = R + 8
10 = R + 16
20 = G + 1
40 = G + 2
80 = G + 4

01 = G + 8
02 = G + 16
04 = B + 1
08 = B + 2
10 = B + 4
20 = B + 8
40 = B + 16

Examples (Basic Colors):
FF03 = Yellow
1F00 = Red
E003 = Green
007C = Blue
1F7C = Pink
C0FF = Cyan

1C7C = Purple
1F02 = Orange
1002 = Brown
FF7F = White
0001 = Dark Green
1042 = Grey/Silver

0000 = Black
Reply With Quote

Relevant Advertising!

Old December 6th, 2007 (7:33 AM).
Binary's Avatar
Binary Binary is offline
Join Date: Aug 2007
Age: 22
Posts: 3,993
Wow very confusing tutorial,
But all the more better, im sure this will help many advanced and beginning hackers.

Reply With Quote
Old December 6th, 2007 (7:33 PM).
SerenadeDS's Avatar
SerenadeDS SerenadeDS is offline
Join Date: Feb 2007
Posts: 283
No, not really confusing. Pretty basic if you ask me, but it is still nice to know! ;)

It would also depend on how people play the certin GB/GBC game on the VBA or other Emulator.. If they played Pokemon Red on VBA with it looking black and white it wouldn't really matter though..

Thanks for the info CBM!
Reply With Quote
Old March 28th, 2008 (4:02 PM).
Scream.Aim.Fire's Avatar
Scream.Aim.Fire Scream.Aim.Fire is offline
Join Date: Mar 2008
Age: 26
Nature: Lax
Posts: 16
Thanks for the tutorial man.
Your stuff is always detailed.
Reply With Quote
Old March 29th, 2008 (6:57 AM).
Teh Baro's Avatar
Teh Baro Teh Baro is offline
In my times...!
Join Date: Mar 2006
Location: Spain
Gender: Male
Nature: Quiet
Posts: 522
I think it's clearer explaining it this way:
Each color is a word (2 bytes) with this format

Where each color flows in the range 0..31. Comparing with 3-byte RGB (html), each value is divided by 8.

If I didn't know that from before, I wouldn't actually understand that tutorial.
what the fudge
Reply With Quote
Old October 30th, 2011 (4:25 PM).
Struedelmuffin Struedelmuffin is offline
Join Date: Sep 2011
Gender: Male
Posts: 19
Really helpful stuff but i still have a question over this, even though this thread is incredibly old. I want to change the color of the main character sprite (HIRO) in silver version to green instead of red. I found the color i need to change but i do not know how to get to the sprite's offset in hex so that i can edit it properly. If someone could please tell me his offset that'd be great.
Reply With Quote
Old November 21st, 2011 (1:08 PM).
Sephiroth2009 Sephiroth2009 is offline
Join Date: Oct 2011
Posts: 18
Just use a sprite editor.
Reply With Quote
Old November 29th, 2011 (7:42 PM).
Struedelmuffin Struedelmuffin is offline
Join Date: Sep 2011
Gender: Male
Posts: 19
Sephiroth I did use a sprite editor and the way the sprite looked changed but the game's coding makes it so that the pre-selected palette the game creators chose will always be loaded during the actual game. Coolboyman has been able to successfully alter the character's colors though so I was hoping he could help me with this.
Reply With Quote
Quick Reply

Sponsored Links
Thread Tools

Posting Rules
You may not post new threads
You may not post replies
You may not post attachments
You may not edit your posts

BB code is On
Smilies are On
[IMG] code is On
HTML code is Off

Forum Jump

All times are GMT -8. The time now is 3:06 AM.