[UI/UX] Ability to remap controller buttons

[wonx]

Hi,

I love that RomM embeds emulatorjs to play games in the browser. However, I noticed that the default controller mapping switches A and B, and Y and X in my gamepad (a 8BitDo Pro 2). I can reconfigure it in the "Control settings" section when the game is running, but I believe these changes only reside in the browser window and only for that specific system.

I'd like a way to be able to permanently remap controller buttons. I found this in emulatorjs documentation https://emulatorjs.org/docs4devs/control-mapping , but I don't even know where to start making those changes.

Is this currently possible?

[gantoine]

Edit: There is a hacky way to do it, which would be to open the browser console and set window.EJS_defaultControls property before launching emulatorjs. Though you'd need to do that every time you want to play, or use a tampermonkey script to set it. Not recommended.

Not currently possible. We'd need to add something in the config UI so users can set controller mappings, which is a bit tricky. Going to backlog this if someone wants to work on it.