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Saving and editing local stored data


Nitoxym
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Hey!

So I want to create a system that displays the number of a certain mob with a certain name, for example, a Creeper named "Creep". I know how to create the event, how to display the text, but what I need is a system that permit me to store the number value, and get it back even after game restart, any idea how to do this?

I'm developing in 1.15.2

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6 minutes ago, Nitoxym said:

Hey!

So I want to create a system that displays the number of a certain mob with a certain name, for example, a Creeper named "Creep". I know how to create the event, how to display the text, but what I need is a system that permit me to store the number value, and get it back even after game restart, any idea how to do this?

I'm developing in 1.15.2

Sounds like you want to use a capability. Probably a capability attached to the World.

VANILLA MINECRAFT CLASSES ARE THE BEST RESOURCES WHEN MODDING

I will be posting 1.15.2 modding tutorials on this channel. If you want to be notified of it do the normal YouTube stuff like subscribing, ect.

Forge and vanilla BlockState generator.

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Just now, Nitoxym said:

Does it work even if I change world / server in multiplayer? If so, how can I use it?

No it would be a different world. I guess I didn't know exactly what you wanted to do.

You want to through all worlds keep track of certain things?

If so you will need to write to a file yourself. Forge doesn't have anything for universal persistence that I know of. Though you can use basic IO or JSON(GSON) for stuff that is loaded and saved once.

VANILLA MINECRAFT CLASSES ARE THE BEST RESOURCES WHEN MODDING

I will be posting 1.15.2 modding tutorials on this channel. If you want to be notified of it do the normal YouTube stuff like subscribing, ect.

Forge and vanilla BlockState generator.

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2 minutes ago, Animefan8888 said:

You want to through all worlds keep track of certain things?

I need to store values, and keep them wherever I go, like a vanilla setting doesn't change on different world

3 minutes ago, Animefan8888 said:

If so you will need to write to a file yourself. Forge doesn't have anything for universal persistence that I know of. Though you can use basic IO or JSON(GSON) for stuff that is loaded and saved once.

Does Forge support that? YML, JSON, .properties, is there a "vanilla" way to do that, or I have to create one myself?

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1 minute ago, Nitoxym said:

Does Forge support that? YML, JSON, .properties, is there a "vanilla" way to do that, or I have to create one myself?

You likely just need to use events to read and write the data. IE when the mod loads(FMLCommonSetupEvent) read the data from the file.

 

And the GSON library is included within the Minecraft/Minecraft Forge project so you can use that to read and write JSON files.

VANILLA MINECRAFT CLASSES ARE THE BEST RESOURCES WHEN MODDING

I will be posting 1.15.2 modding tutorials on this channel. If you want to be notified of it do the normal YouTube stuff like subscribing, ect.

Forge and vanilla BlockState generator.

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5 minutes ago, Animefan8888 said:

You likely just need to use events to read and write the data. IE when the mod loads(FMLCommonSetupEvent) read the data from the file.

 

And the GSON library is included within the Minecraft/Minecraft Forge project so you can use that to read and write JSON files.

Ok perfect, and how can I do that?

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3 minutes ago, Nitoxym said:

Ok perfect, and how can I do that?

Click here. Or look up how to use the GSON library in Java.

VANILLA MINECRAFT CLASSES ARE THE BEST RESOURCES WHEN MODDING

I will be posting 1.15.2 modding tutorials on this channel. If you want to be notified of it do the normal YouTube stuff like subscribing, ect.

Forge and vanilla BlockState generator.

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3 hours ago, Nitoxym said:

Well, I can't figure how to do it, I feel stupid '-'

Which part can you not figure out?
How to use GSON to write Json to file?
How to get the .minecraft file location?

 

If you want to use .dat I believe you need to store your data in a CompoundNBT then use net.minecraft.nbt.CompressedStreamTools to read and write your file when you need/want to.

VANILLA MINECRAFT CLASSES ARE THE BEST RESOURCES WHEN MODDING

I will be posting 1.15.2 modding tutorials on this channel. If you want to be notified of it do the normal YouTube stuff like subscribing, ect.

Forge and vanilla BlockState generator.

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9 hours ago, Animefan8888 said:

Which part can you not figure out?
How to use GSON to write Json to file?
How to get the .minecraft file location?

.minecraft, I might have an idea, but not sure, to use GSON, I have no idea, and I don't understand most of the posts

9 hours ago, Animefan8888 said:

If you want to use .dat I believe you need to store your data in a CompoundNBT then use net.minecraft.nbt.CompressedStreamTools to read and write your file when you need/want to.

May I have any example please? Or any method to do this

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3 minutes ago, Nitoxym said:

May I have any example please? Or any method to do this

Take a look at those two classes. CompoundNBT and CompressedStreamTools.

 

3 minutes ago, Nitoxym said:

.minecraft

You can get the game directory by doing Minecraft.getInstance().gameDir but do note that this will not work on dedicated server.

5 minutes ago, Nitoxym said:

but not sure, to use GSON, I have no idea, and I don't understand most of the posts

Here is an example where I have used GSON to write JSON files. Though it might be too complicated for an example.

VANILLA MINECRAFT CLASSES ARE THE BEST RESOURCES WHEN MODDING

I will be posting 1.15.2 modding tutorials on this channel. If you want to be notified of it do the normal YouTube stuff like subscribing, ect.

Forge and vanilla BlockState generator.

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2 minutes ago, Animefan8888 said:

Take a look at those two classes. CompoundNBT and CompressedStreamTools.

Ok, i'll check docs for that

2 minutes ago, Animefan8888 said:

You can get the game directory by doing Minecraft.getInstance().gameDir but do note that this will not work on dedicated server.

It is a client only mod (and personal tool) so no problems with that

2 minutes ago, Animefan8888 said:

Here is an example where I have used GSON to write JSON files. Though it might be too complicated for an example.

Ok, thanks, i'm checking that!

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