[📦] Chunk Copy (Fabric)

Hello everyone. I would like to mention that I do not have any plans to continue the development of this mod for now. I may publish releases for future versions of the game, however that is not guaranteed. This mod is also a bit messy and incompatible with some other mods (for example if your frame rate drops to 0 when auto copying, then that is because of incompatibilities with other mods), and resolving such issues would require straight-up rewriting the mod.

There are also other third party tools that aim to do the same thing this mod does, so if this mod is not sufficient enough for you, you could try giving one of those other tools a try (note: i do not wish to link any of them nor do i claim any responsibilities for them. so if you get a virus, it's on you).

So yeah, sorry about that, and hopefully this mod manages to help you out. Have a great day!

[Feb. 5th 2023]

Mod description

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Important: Before downloading the v2.2.1 for Minecraft 1.19, please read the file description. Also keep in mind that pasting chunks can only be done on the same Minecraft version you copied chunks on.

Chunk Copy is a Fabric Minecraft mod used for copying chunks from both singleplayer and multiplayer worlds and pasting them into singleplayer worlds. You can copy (download) world chunks from multiplayer servers as well. This mod adds a client-side command /chunkcopy that is used to copy and paste world chunks. All copied world chunks are stored in the mods/chunkcopy directory.

Command syntaxes

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• /chunkcopy (copy/paste) <file_name> [chunk_distance] - Used to copy and paste chunk blocks.
• /chunkcopy fill <chunk_distance> <block> - Used to completely fill chunks with a specific block.
• /chunkcopy clear <chunk_distance> - Same as fill, but the block is air.
• /chunkcopy autoCopy start [file_name] - Used to automatically copy chunks in the background.
• /chunkcopy autoCopy stop

file_name - The name of the directory where the chunk data is saved to and loaded from. All copied chunks are stored in the mods/chunkcopy/[file_name]/ directory.

chunk_distance - Defines how close the chunk has to be in order to be affected. For example, if this argument was set to 4, then all chunks within the render distance of 4 would be affected. By default, this value depends on the render distance. Because large chunk distances cause massive lag and the game to freeze due to so many blocks being affected all at once, this value is cannot go over 8.

block - The desired block type.

Just a small heads-up

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This mod does not feature a way to undo and redo changes made to chunks. Please be careful as any wrong moves made cannot be undone.

Please avoid pasting, filling, or clearing chunks while having a mod that logs changes to worlds active. Such mods could cause even more lag or could even crash the game.

Edit (i failed to mention this): Also avoid using auto paste and other features if you have any other mod installed that either makes or handles frequient block/world changes in the background. There were a few instances of people's FPS dropping to 0 because of incompatibilities.

Some extra info

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To copy chunks, log in on the desired Minecraft server, and go to the area that you wish to copy. Make sure that the chunks you wish to copy are loaded. Then execute the copying command (ex. /chunkcopy copy Test).
To paste chunks, go to a singleplayer world that has cheats enabled (it is preferred that you create a new empty superflat world with the void preset), then go to the exact same coordinates of where the chunks you copied are located on the server, and execute the pasting command (ex. /chunkcopy paste Test).

Here is a short clip showing how the mod works: