Migrate player data when enabling online auth

[Londiuh]

Is your feature request related to a problem? Please describe.
Not related to a problem, but losing your data when enabled online auth is annoying.

Describe the solution you'd like
When a player enables online auth, their data gets migrated to the online UUID.

Version
Mod version: 1.2.1
Minecraft version: 1.17
Fabric version: 0.7.4

[Dqu1J]

I don't know...

why is this function optional? if someone has an original client, they don't have to write a register and login .. the mod should be set to "forced-online-auth": true by default, and "optional-online-auth": false

this is how the mod should be configured by default and would actually only allow registration and login for non-original clients .. the original client would do nothing and just connect

then the situation with migration of uuid to another uuid would never occur

[Dqu1J]

When forced-online-auth is enabled, offline players using a username of an online account won't be able to log in. There are millions of existing online accounts, so forced-online-auth is not enabled by default.

maybe you're thinking about it wrong .. if you're building a new era of minecraft server here via FABRIC, it would be good to start thinking about changing your mindset .. i support non-original launchers, but let's get a name that no one bought. no stealing names

[Londiuh]

@PortableGames it's not sealing names. Sometimes non-premium players have usernames that coincidentally already exists and someone has an account with that name. And if forced-online-auth is enabled, it can be really annoying to them because maybe they play other servers and they have to change their username just to play your server.

[PortableGames]

@PortableGames it's not sealing names. Sometimes non-premium players have usernames that coincidentally already exists and someone has an account with that name. And if forced-online-auth is enabled, it can be really annoying to them because maybe they play other servers and they have to change their username just to play your server.

what I said is still true .. if non-original players want to play anywhere under a "as you say non-stolen nick" they are out of luck .. because maybe a player who bought the game wants to join and because of the stolen name it won't work and I as the owner will have to deal with unregister and verification of proof who is right;(

and that's why I again suggest to somehow detect that the name has not been verified on the mojang api .. and show the player a custom sentence like: you can't use the nickname of the player who bought the original game