joengine

Hi, I'm starting saturn Game dev, And I downloaded Jo engine 2025 on Windows 11. Unfortunatly when I try to compile the code in a ISO in the Demo1 folder, The cmd start then quickly stop. I modified the bat, to pause In order to see what is the problem and the console display me the following...

Hi guys, I've ported celeste classic to the sega saturn. This is a port from the C / SDL version by lemon32767 to JO Engine. https://en83.itch.io/celeste-classic-for-sega-saturn I'll try to do some code cleanup before sharing the code. I've tested it on a Japanese Saturn and on mednafen...

Hi, I am trying (again) to learning Jo Engine but I am struggling with a simple thing: put the vdp2 as a floor (or correct the camera perspective): my current code: #include <jo/jo.h> static jo_pos3Df pos, rot; static jo_palette floor_pal; static jo_camera cam; static jo_vertice...

Hi ! I've created a small code of a box going ever to the right and a jump button But when I tried to move the camera, it did not work What I did wrong here? #include <jo/jo.h> // Structure to store the cube's position and velocity typedef struct { jo_pos3Df position; float velocity_y...

I'm trying to build a simple low-poly sphere that is "playable" using a Sega Saturn gamepad (similar to the game Marble Madness) with Jo Engine The code I'm using is as follows: the result is: https://imgur.com/rytTvAq As you can see, the low-poly sphere is not rotating like a ball when I...

Since I couldn't find any tools that gave me full access to the SCSP's unique feature set, I decided to try writing one myself. The result of this effort (and my first serious Sega Saturn project) is Calypso: an interactive sound design program that lets you create and play your own custom...

I threw a ticket in for this, figured I'd bug Ponut here as well. I was looking at different resolutions for Jo Engine and I had a few questions. I am a complete noob on resolutions so I could very well be completely wrong. JO_480p seems to be misnamed. While the Saturn does have a high...

I'm trying to detect the user pressing ABC+Start via Jo Engine. Currently the game crashes when player 1 presses ABC+start. I tried adding a callback but I think something higher up is catching the ABC+Start key press before it gets to my callback. Is there an API I need to call?