Jo Engine: 2D game engine for the Sega Saturn

[Johannes Fetz]

Hi,

I added PCM audio file support on the Engine. You can now play PCM file from CD.

To convert any audio file to PCM under Linux or Windows => http://ffmpeg.org

Just some restriction due to the Sega Saturn hardware:
Compatible Samplerate : 8000 to 44100 Hz (-ar option)
Compatible PCM format : s8 (-f option)
Compatible mode: 8/16 bit mono/stereo
Some command line:
ffmpeg -i A.WAV -f s8 -ar 44100 A.PCM
ffmpeg -i A.MP3 -f s8 -ac 1 -ar 8000 A.PCM

Now in Jo Engine:

jo_sound my_snd;
jo_audio_load_pcm("A.PCM", JoSoundMono16Bit, &my_snd);
...
jo_audio_play_sound(&my_snd, 0);

---

I also made a huge update of Jo Map Editor:

You can now explode (split) image in tile and export any image in raw 15 bits format:

Attachment 11059

More details here: http://www.jo-engine.org/mapeditor/

[Game Taff]

This really is amazing work. I can't wait to see what else comes from this! The Saturn needs a lot more homebrew love and this 2d sonic fan game looks beautiful!

[Johannes Fetz]

This really is amazing work. I can't wait to see what else comes from this! The Saturn needs a lot more homebrew love and this 2d sonic fan game looks beautiful!

Thx Game Taff

Btw, I look for someone to help me to create sprites (not ripped).
I want to create kick ass demo to show the engine possibilities
Unfortunately, I suck at drawing

[Johannes Fetz]

Hi !

New update available with a new demo with advanced animation

Download: http://www.jo-engine.org/download/

[matteus]

Interesting this is another pure C implementation I take it? I could work with this

[Barone]

Pure C == Pure awesomeness.

[LinkueiBR]

Hi !

New update available with a new demo with advanced animation

Download: http://www.jo-engine.org/download/

AWESOME!!!

[Sik]

Keyboard? Is it actual keyboard support or just the gamepad fallback inherent to the protocol? (for those who aren't aware: every peripheral on the Saturn will simulate a joypad in addition to their actual features, so save for the mouse and wheel which can't simulate a D-pad, you can play any Saturn game with just about anything)

[Johannes Fetz]

Keyboard? Is it actual keyboard support or just the gamepad fallback inherent to the protocol? (for those who aren't aware: every peripheral on the Saturn will simulate a joypad in addition to their actual features, so save for the mouse and wheel which can't simulate a D-pad, you can play any Saturn game with just about anything)

Keyboard if you use an emulator

[Sik]

...oh (・＿・)

The Saturn keyboard really does emulate a controller if anybody wonders (arrows map to the D-pad, Z/X/C/A/S/D to A/B/C/X/Y/Z, Q/E to L/R, Esc to Start) At least that's the impression I get by looking at its packet format.

[Johannes Fetz]

...oh (・＿・)

The Saturn keyboard really does emulate a controller if anybody wonders (arrows map to the D-pad, Z/X/C/A/S/D to A/B/C/X/Y/Z, Q/E to L/R, Esc to Start) At least that's the impression I get by looking at its packet format.

[Johannes Fetz]

Hi !

New update available with a new demo with realtime gouraud shading and brightness



Download: http://www.jo-engine.org/download/

[Johannes Fetz]

Hi,

Huge update with hitbox detection, fast cosinus & sinus implementation and more.

I also improved the shooter demo

Download: http://jo-engine.org/download/

[Game Taff]

I wish I knew something about coding to help. My limited were stretched with visual basic, php, html etc.. Keep working on that sonic demo!

[Da_Shocker]

This is totally awesome and this Sonic game looks better than Sonic X-Treme. Hopefully this will allow us to get the 6 player Project Y sequel in 2020.