Custom player data | SpigotMC | Page 1

topaz sierra Dec 7, 2021, 5:52 PM

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Custom player data

astral hamlet Dec 7, 2021, 5:53 PM

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what player nbt are you saving?

topaz sierra Dec 7, 2021, 5:54 PM

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i am serializing entire player object to make it persistent across servers

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pretty much everything that's saved to level.dat for the player

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https://minecraft.fandom.com/wiki/Player.dat_format

Minecraft Wiki

Player.dat format

<player>.dat files are used by servers to store the state of individual players. The format is also used within level.dat files to store the state of the singleplayer player, which overrides any <player>.dat files with the same name as the singleplayer player. These files are in NBT format.

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and i have some custom plugin specific data assigned to each user like next time the user can use an item or cooldowns

astral hamlet Dec 7, 2021, 5:57 PM

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a player object is saved into the .dat files right?

topaz sierra Dec 7, 2021, 5:57 PM

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it's and also it's serialized and saved to my mongodb so that other servers can access it

astral hamlet Dec 7, 2021, 5:57 PM

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ah i understand where you're talking about, you're trying to get the same state of the player on a different server

topaz sierra Dec 7, 2021, 5:58 PM

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yup

astral hamlet Dec 7, 2021, 5:58 PM

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hmm this is beyond my knowledge

topaz sierra Dec 7, 2021, 6:00 PM

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i have that working - i just don't know is it better to save my custom properties in wrapper class like

class User {
  private final Player player;
  private int points;
  private int nextSpecialItemUse;
}

or PersistentDataContainer on the Player itself.

astral hamlet Dec 7, 2021, 6:00 PM

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i wouldn't store the actual player object

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since it can become invalid

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whenever the player leaves the server

topaz sierra Dec 7, 2021, 6:02 PM

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obviously i save it and remove player object onQuit, the wrapper class is just for my plugin internals

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then i just call ServerPlayer::restoreFrom(ServerPlayer oldPlayer, boolean alive) onJoin where oldPlayer is my database serialized player

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and load custom data for my User.class

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at this point it just seems as a better solution to use PersistentDataContainer if it works how I think it is

astral hamlet Dec 7, 2021, 6:16 PM

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you can store primitives and strings in it

topaz sierra Dec 7, 2021, 6:22 PM

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i can store byte[] - thus everything

astral hamlet Dec 7, 2021, 6:26 PM

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ah yes PersistentDataType.BYTE_ARRAY

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but the pdc is used for small data

topaz sierra Dec 7, 2021, 6:33 PM

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i don't have anything big to store, skill cooldowns, points etc.

astral hamlet Dec 7, 2021, 6:33 PM

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i think it would be better to store it in some type of file/ db

topaz sierra Dec 7, 2021, 6:51 PM

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I do, i just don't know if it's better to store player and custom data separately or custom data inside PersistentDataStorage (which i assume just adds it to player's CompoundTag which i do save anyway)

astral hamlet Dec 7, 2021, 6:54 PM

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well i think its useless to store it in the pdc as its a new server and the pdc is different there for the player than the other server

topaz sierra Dec 7, 2021, 6:55 PM

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that's why i am overwriting it using NMS on the new server

#Custom player data