Gameboy Development Forum
Discussion about software development for the old-school Gameboys, ranging from the "Gray brick" to Gameboy Color
(Launched in 2008)
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#1 2016-04-18 18:36:59
GBDK Tutorial code
So, I finally got around to writing up a GBDK demo ROM for people to build things off from tonight.
It's fully commented and covers most of the bases to get a simple game started off with. Tiles / Data grabbing, joypad input, collision and a tiny amount of sound. Just enough to give a flavour of gameboy to it.
Any comments would be welcome.
You can download the files from here:
https://refreshgames.co.uk/2016/04/18/g … orial-rom/
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#2 2016-05-04 04:34:11
- a cat
- Member
- Registered: 2014-07-27
- Posts: 98
Re: GBDK Tutorial code
Seems perfect for beginners
Thanks for sharing!
a cat in need of knowledge!!
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#5 2016-06-03 10:26:58
- caseyweederman
- New member
- Registered: 2016-06-03
- Posts: 2
Re: GBDK Tutorial code
Hi! What version of GBDK compiles this?
I get
#error SFR is untested and disabled in 2.96
when I run the first line in the batch file. If I take out the -DUSE_SFR_FOR_REG, I get
/opt/gbdk/bin/lcc: fatal error in /opt/gbdk/bin/sdcc
I'm using https://github.com/gheja/gbdk
Thank you for all your hard work!
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#7 2016-06-06 17:05:07
Re: GBDK Tutorial code
gbdk3-2.93 - http://gbdk.sourceforge.net/
-----------------------------------------
This is a early-release beta. Please report any bugs 
Looks like I'm running an older version, eep!
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#8 2016-09-07 03:31:10
- WHOKILLEDKENNY
- New member
- From: China SDU
- Registered: 2016-08-17
- Posts: 2
Re: GBDK Tutorial code
rychan wrote:
So, I finally got around to writing up a GBDK demo ROM for people to build things off from tonight.
It's fully commented and covers most of the bases to get a simple game started off with. Tiles / Data grabbing, joypad input, collision and a tiny amount of sound. Just enough to give a flavour of gameboy to it.
Any comments would be welcome.
You can download the files from here:
https://refreshgames.co.uk/2016/04/18/g … orial-rom/
Hi rychan! I noticed there are actually five different tile patterns ---- with the first tile being totally blank! Thus the correct one should be rand()%5, rather than rand()%4, to make a starry background. I examined the program and found the "X" shaped tile was actually omitted in the random background, which I believe should be a little mistake.
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#11 2017-01-18 02:16:39
- npzman
- Banned
- From:
- Registered: 2014-11-19
- Posts: 197
Re: GBDK Tutorial code
rychan can you make video on how to develop with the GBDK
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#12 2017-01-19 08:08:19
#13 2017-02-19 18:39:21
Re: GBDK Tutorial code
I might try to make a video at some point in the future but work and family commitments means I have little time for things currently. It would be cool to go througgh a simple game step - by - step though.
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#14 2017-02-23 14:50:47
- Heigw
- Member
- From: Michigan-United States
- Registered: 2017-02-22
- Posts: 14
Re: GBDK Tutorial code
Yeah, that would be cool. I found one series of tutorials for the gameboy. It was quite informative, but they move slowly. Its good for beginners (me).
I've just started coding in C for the gameboy. Any help or tutorials would be greatly appreciated.
I am making a game that is an "Interactive Story." If think you could help in any way or want to check on the progress here is the ROM and source-code.
Story Time... With Uncle Heigw: http://www.filedropper.com/story_2
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