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[1.11.2] [SOLVED] Save HashMap to NBT

Posted April 26, 20178 yr

Hi.

How can I save a HashMap which stores a BlockPos and an EnumFacing to NBT data and read it in?

HashMap<BlockPos, EnumFacing>

Thx in advance.

Bektor

Edited August 24, 20178 yr by Bektor

Developer of Primeval Forest.

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April 26, 20178 yr

I've been always using a NBTTagCompound saving first the amount of entrys as an int.

And than saving each entry as an additiona NBTTagCompound using a simple For loop to add a number to the name.

How to read it is maybe self explanatory.

Quote

April 26, 20178 yr

I'd recommend serializing the HashMap to JSON (String) through Gson

Gson::toJson returns a JSON string representation of the provided object.

Gson::fromJson returns a new instance of the provided class, using the provided JSON string.

If you have null values in your map, and want to keep them (for whatever reason) you need to use GsonBuilder with serializeNull (or whatever it is called, not at my PC right now) chained. Gson skips null values by default.

Also previously known as eAndPi.

"Pi, is there a station coming up where we can board your train of thought?" -Kronnn

Published Mods: Underworld

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April 27, 20178 yr

I'd recommend using a list of compound tags, each one containing a key-value pair.

Please don't PM me to ask for help. Asking your question in a public thread preserves it for people who are having the same problem in the future.

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By nyxxiea · Posted 11 hours ago11 hr

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[1.11.2] [SOLVED] Save HashMap to NBT

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Trying to boot MC Eternal 2 Server, works on linux not on Windows 11: Jvm args error

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NEED HELP ASAP - Failed to load datapacks, can't proceed with server load. You can either fix your datapacks or reset to vanilla

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