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PolyMC / PolyMC

A custom launcher for Minecraft that allows you to easily manage multiple installations of Minecraft at once (Fork of MultiMC)
https://polymc.org/
GNU General Public License v3.0
1.81k stars 265 forks source link

Launch same instance multiple times #179

Open ghost opened 2 years ago

ghost commented 2 years ago

Role

I often launch Minecraft multiple times at once

Suggestion

Add a button to be able to launch an already running instance another time

Benefit

Playing in both single and multiplayer, testing/AFKing with multiple account with same configuration/mods/resource packs at the same time.

This suggestion is unique

You may use the editor below to elaborate further.

The vanilla Minecraft launcher allows running the same profile multiple times at the same time. Currently, PolyMC doesn't have such feature. It would be nice if I could launch the same profile/instance multiple times at the same time.

Perhaps it would be a good idea to add a disclaimer to remind players not to open the same world two times. This might be useful for older versions of Minecraft, as newer ones lock the worlds so it's not possible to open the same world multiple times.

This was already suggested to MultiMC, but never got implemented: https://github.com/MultiMC/Launcher/issues/2175

magnus-ISU commented 2 years ago

This is especially relevant to trying to launch the same instance with multiple accounts

MattSturgeon commented 2 years ago

Perhaps it would be a good idea to add a disclaimer to remind players not to open the same world two times. This might be useful for older versions of Minecraft, as newer ones lock the worlds so it's not possible to open the same world multiple times.

Perhaps we can check which snapshot introduced the world lock feature? Then we only need to warn users who are running an instances for old versions where there's a risk of opening the same world twice.

I guess the UI would need to change slightly, currently the instance dialogue shows the current stdout/stderr coming from the running game, I guess maybe a tabbed interface would work when an instance is running multiple times?

LoneDev6 commented 2 years ago

Is there any news on that? The Minecraft vanilla launcher allows that, it's useful for developer to test mods and similar. Having to clone the instance is just plain annoying.

Thanks!

CDAGaming commented 2 years ago

Bumped, would really love to have this

mind-overflow commented 1 year ago

following this issue. if singleplayer world corruption is an issue, i'd just put a disclaimer of some sort when you first start it up saying that this is a "testing" mode and should not be used for regular (SP) gameplay.