Homebrew Toolbox and tutorial: How to use Ninjhax and make your own homebrews

[xem]

Hello everyone,

Please let me introduce the 3DShomebrew project:

http://xem.github.io/3DShomebrew/

The tutorial is still under active development.

Please tell us (in this thread, or with an issue or a pull request):

- if you have remarks, ideas, suggestions or want to add missing information

- If you want to help us to:

- document the basics of C/C++, the 3DS registers and memory areas.
- Detail the ctrulib's API.
- Develop tools to ease homebrew development.
- Make a game-oriented library based on Ctrulib.

All ideas, comments, help will be useful!

Thanks!

xem

 

[yodamerlin]

I am learning/trying to learn C so this will come in handy when I move to 3DS. Can't wait to see what it turns into! But quick question, who is this aimed at?

 

[xem]

I am learning/trying to learn C so this will come in handy when I move to 3DS. Can't wait to see what it turns into! But quick question, who is this aimed at?

Well, I want to make it accessible to everybody having a basic knowledge in programmation (functions, loops, conditions, etc).
So Java / JS / etc... coders will understand what's happening.

 

[yodamerlin]

Well, I want to make it accessible to everybody having a basic knowledge in programmation (functions, loops, conditions, etc).
So Java / JS / etc... coders will understand what's happening.

Good! I do have a bit of programming knowledge. But there is one thing I hate about some tutorials and that is baby steps, or "holding hands" it feels so boring it a subject that is very interesting!

 

[Sparks43]

Looking forward to see how this develops

Going to try a basic hello world later so for me baby steps are very welcome

 

[Ante0]

Thanks, I just downloaded the devkit and was looking for some basic starter info!

 

[yodamerlin]

Cubic Ninja is still on its way... Why is it taking so long!
Anyway, I have some code that tracks all of the bits in my port of my own game. Now all it needs is to be able to draw this to the screen.

 

[williamcesar2]

'' This project doesn't encourage you to pirate 3DS games (which is impossible using NINJHAX), or use it to emulate older consoles like NES or SNES (unless you have a copy of the games you emulate). ''

this is utopianism

 

[xem]

Looking forward to see how this develops

Going to try a basic hello world later so for me baby steps are very welcome

The simplest task would be to draw pixels on the screen (you can take a look at ctrulib/template/source/main.c: it displays one white pixel on the upper screen)

A hello world would be more complicated, because AFAIK there's no native text output. you have to compile all the letters A-Z, a-z, etc. in an image and use parts of this image for each letter.

 

[xem]

'' This project doesn't encourage you to pirate 3DS games (which is impossible using NINJHAX), or use it to emulate older consoles like NES or SNES (unless you have a copy of the games you emulate). ''

this is utopianism

in fact, the legal paragraph is just to answer to the haters on reddit ^^
cf. A complete 3DS homebrew tutorial : 3DS > at the bottom.

 

[Sparks43]

The simplest task would be to draw pixels on the screen (you can take a look at ctrulib/template/source/main.c: it displays one white pixel on the upper screen)

A hello world would be more complicated, because AFAIK there's no native text output. you have to compile all the letters A-Z, a-z, etc. in an image and use parts of this image for each letter.

Compiled that as a test and it worked for me on first try

2 thing i would like to do though

1 change the hbl icon to another that i have created ]

and 2 change the unspecified author to something else

Enjoying this though good bit of fun

 

[xem]

2 thing i would like to do though

1 change the hbl icon to another that i have created ]

and 2 change the unspecified author to something else

Open the template makefile file with notepad and read the comments
1) add a 48x48px (projectname).png or icon.png file at the root of the project. Normally, this logo is used instead of the default one if it's present.
2) add "APP_AUTHOR := (your name) under the line 33.

Please tell us if it works for you

 

[Sparks43]

Very very nice

Worked a charm thank you very much

Time for a pint then i am going to see how far i can go with this

Port of Boulder dash would be my aim but thats miles away

 

[yodamerlin]

I'm presuming the "start=Exit to launcher" will become standard?

 

[xem]

sparks43: I hope my tutorial will help making a game like that, at least
yodamerlin: it's not so bad I guess. I wonder if / how we could change that though, if wemake a homebrew that needs "start" for a pause menu.

 

[yodamerlin]

Regularity between apps/games is a good thing. And since it has been defined in the example, I guess we follow that.
I think I will be following that anyway.

 

[loco365]

I'm presuming the "start=Exit to launcher" will become standard?

That can be modified. There's an X you can tap on blargSNES to exit to the launcher, and gameyob has a menu option to return to the launcher. It really seems to be up to the developer how they want to implement it.

 

[yodamerlin]

I can't wait to see some really cool homebrew apps! 3DS linux though... Then the 3DS is complete.

 

[Lowren]

sparks43: I hope my tutorial will help making a game like that, at least
yodamerlin: it's not so bad I guess. I wonder if / how we could change that though, if wemake a homebrew that needs "start" for a pause menu.

I know next to nothing about programming but I assume you can change it in the main.c code, here:

        u32 kDown = hidKeysDown();
        if (kDown & KEY_START)
            break; // break in order to return to hbmenu

Line 20 in the ctrulib template.

Anyway, it's a great tutorial project, I'm looking forward for the prog part!

 

[williamcesar2]

in fact, the legal paragraph is just to answer to the haters on reddit ^^
cf. A complete 3DS homebrew tutorial : 3DS > at the bottom.

lol so BlargSnes & 3DNES is not allowed in your project
this is utopianism