[SOLVED] [1.12.2] Modifying player capabilities for offline players?

[Differentiation]

Hey!

 

Is there any way to modify capability values for offline players (where EntityPlayerMP instance is null essentially) without using JSON? Is there like a way to make capabilities for GameProfile?

 

Any help is appreciated!

 

Thanks!

Edited December 9, 2019 by Differentiation

[diesieben07]

How is JSON applicable at all here? Capabilities use NBT...

You can probably do something similar to what SaveHandler#readPlayerData does. You can't use it directly, because it requires an EntityPlayerMP. Then you can modify the data and save it back. Note however that you need to take to only do this if the player isn't logged in or your changes will go away.

[Differentiation]

3 hours ago, diesieben07 said:

How is JSON applicable at all here? Capabilities use NBT...

You can probably do something similar to what SaveHandler#readPlayerData does. You can't use it directly, because it requires an EntityPlayerMP. Then you can modify the data and save it back. Note however that you need to take to only do this if the player isn't logged in or your changes will go away.

I mean, it isn't necessarily capabilities that I'm trying to store, it's just raw data (some boolean, integer variables, etc.) and that's what I meant by using JSON.

 

So the way I currently do it is make a temporary entry in my JSON file for offline player. Then when they log on, I move the values to NBT (the player capability class) and remove the JSON entry.

Edited December 9, 2019 by Differentiation

[diesieben07]

In that case you could just store a Map<UUID, YourDataClass> somewhere and load/unloaded from that as needed. And then you can use whatever data format you want.

[Differentiation]

1 minute ago, diesieben07 said:

In that case you could just store a Map<UUID, YourDataClass> somewhere and load/unloaded from that as needed. And then you can use whatever data format you want.

Yes, but what if the Dedicated Server is, say, closed before the player gets to log on?

[diesieben07]

6 minutes ago, Differentiation said:

Yes, but what if the Dedicated Server is, say, closed before the player gets to log on?

What is your concern?

[Differentiation]

7 minutes ago, diesieben07 said:

What is your concern?

The values in the Map will disappear after the server closes.

[diesieben07]

1 minute ago, Differentiation said:

The values in the Map will disappear after the server closes.

Well... yes.

You need to save them to disk.,

[Differentiation]

2 minutes ago, diesieben07 said:

Well... yes.

You need to save them to disk.,

What disk? Wouldn't this be similar to the whole JSON thing?

[diesieben07]

3 minutes ago, Differentiation said:

What disk?

The one the world is also saved to?

 

5 minutes ago, Differentiation said:

Wouldn't this be similar to the whole JSON thing?

Like I said, which file format you use is completely up to you here.

[Differentiation]

7 minutes ago, diesieben07 said:

The one the world is also saved to?

 

Like I said, which file format you use is completely up to you here.

Ah I see. I think now the JSON much is way simpler

 

Thanks for the help! 

Edited December 9, 2019 by Differentiation

[Differentiation]

8 minutes ago, diesieben07 said:

The one the world is also saved to?

 

Like I said, which file format you use is completely up to you here.

The thing is I was trying to figure out if there's any way to accomplish this without having to save data to a file.

[diesieben07]

The only way to make data persist is to write to to some form of file.

Whether you do it explicitly, or implicitly. You cannot persist data by wishing really hard.