Commands

This page is the documentation for all the commands.

Providing you with all the command documentation with examples.
A few things right out of the gate:

• A few Commands have the [TaskId] as a parameter.
  The [TaskId] is the unique name you have to type into gen/deletion command.
  This might not make sense right now, just keep it in mind.
• Chunk Pregenerator works with Chunk Values. A Chunk is 16 Blocks big.
  Simply diving everything by 16 turns a Block Radius to a Chunk Radius.

$\underline{\text{Essential Commands}}$

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These Commands are your basic controls you might always need.

$\color{link}{\underline{\text{Stop}}}$

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The stop command stops all the active tasks that are running.
If you want to stop a specific task then the Task Id can be provided too.

Examples:

Command	Action
/pregen stop	Stops all Tasks
/pregen stop [TaskId]	Stops a Specific Task
/pregen stop [TaskId] [true/false]	Stops and deletes a Specific Task

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${\underline{\text{Clear}}}$

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The Clear Command is for deleting specific tasks if you don't want them to continue.
If the task you want to delete is actively running then it will be stopped too.

Examples:

Command	Action
/pregen clear	Deletes all Tasks
/pregen clear [TaskId]	Deletes a Specific Task

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${\underline{\text{Continue}}}$

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If you have stopped a Task but want to continue it or want to continue on a specific task instead of processing it in the insertion order.
The Continue Command is your best friend!

Examples:

Command	Action
/pregen continue	Continues the first task in the queue
/pregen continue [TaskId]	Continues the selected task

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${\underline{\text{Pause}}}$

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This Command pauses a task.
This doesn't mean it will instantly stop doing what it has been doing.
It will finish the current batch it has started and then not continue on the next batch.

Examples:

Command	Action
/pregen pause	Pauses all tasks
/pregen pause [TaskId]	Pauses a specific Task

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${\underline{\text{Resume}}}$

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The Resume task continues a Paused Task.
Note this can not continue stopped Tasks.
Only Paused tasks are valid Targets.

Examples:

Command	Action
/pregen resume	Resumes all tasks
/pregen resume [TaskId]	Resumes a specific Task

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${\underline{\text{TaskList}}}$

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The Task List Command shows you the Tasks that are pending to be processed.
On top of that it allows to delete tasks if wanted.

Examples:

Command	Action
/pregen tasklist gen	Shows the TaskList of Generation Tasks
/pregen tasklist deletion	Shows the TaskList of Deletion Tasks

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${\underline{\text{Generation Commands}}}$

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This is the Generation commands Section.
This Section provides you will all the info you need to generate your world effectively!

${\underline{\text{Generation Types}}}$

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Chunk Pregenerator provides a bunch of Generation Types.
These provide specific utilties that may or may not be needed.
Valid Values:

Generation Type	Value	Information
Normal Gen	NORMAL_GEN	Generates the world like normal. Scans every single chunk to figure out if it was fully generated or not
Fast Gen	FAST_CHECK_GEN	Generates the world like normal. Uses a Approximation Scan to figure out if a Chunk was fully generated. Which reduces the accuracy in edge cases a bit, but is 10000x faster.
Post Gen	POST_GEN	Scans and fixes existing Chunks to figure out if they were fully generated. Doesn't generate new chunks
Terrain Only	TERRAIN_ONLY	Only Generates the Terrain not ores/trees/structures. When players explore these will generate. Good for a Fog Of War Map. Doesn't provide Performance Boost.
Terrain Only Mode	BLOCK_POST	Only Generates the Terrain and then finishes the Chunk so it is saved as fully generated chunk. Chunk Pregen can't post gen these chunks either!
Retrogen	RETROGEN	Turns the Pregen task into a Retrogen task where Selected Generators are applied on to the chunks. Doesn't generate new chunks. Check out the Retrogen Section which is under the Utility Commands!

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${\underline{\text{Radius}}}$

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The Radius command is your most basic Pregeneration command.
You define a center and a radius and it generates everything from the inside out.

Command Structure:

/pregen start gen radius TaskId Shape CenterX CenterZ Radius Dimension GenerationType

Argument	Required	Valid Value	Default	Information
TaskId	Yes	Any Name		The Identifier of the Task
Shape	Yes	SQUARE/CIRCLE		The Shape of the Generation
CenterX / CenterZ	Yes	Any Number (in Chunks)		The Center Position of the Pregeneration. Supports Relative values to (~). if Advanced Arguments enabled also Spawn location (^)
Radius	Yes	Any Number (in Chunks)		How big the Pregeneration should be
Dimension	No	Any Valid DimensionId	The Dimension you are in. Server Console defaults to overworld.	Decides which dimension the pregeneration should be in
Generation Type	No	Any Valid Type	FAST_CHECK_GEN	Please check out the Generation type Section

Examples:

Command	Action
/pregen start gen radius GenExample SQUARE 0 0 100	Starts a 100 Radius Square Pregeneration task. In the Dimension you are in with the TaskId "GenExample"
/pregen start gen radius GenExample CIRCLE 0 0 250 minecraft:the_nether	Starts a 250 Radius Circle Pregeneration task. In the Nether with the TaskId "GenExample"
/pregen start gen radius GenExample SQUARE 0 0 100 minecraft:overworld RETROGEN	Starts a 100 Radius Square Retrogeneration task. In the Overworld with the TaskId "GenExample"
/pregen start gen radius GenExample SQUARE ~ ~ 100	Starts a 100 Radius Square Pregeneration task around you. In the Dimension you are in with the TaskId "GenExample"
/pregen start gen radius GenExample SQUARE ^ ^ 100	Starts a 100 Radius Square Pregeneration task around you. In the Dimension you are in with the TaskId "GenExample" Requires Adv Arguments enabled in the config

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${\underline{\text{Expansion}}}$

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The Expansion command is when you already have pregenerated your world but want to expand said world without redoing existing work.
While that is a non issue due to how chunk pregen works.
It still has it's uses when you want to exclude a minimum area.

Command Structure:

/pregen start gen expansion TaskId Shape CenterX CenterZ MinRadius MaxRadius Dimension GenerationType

Argument	Required	Valid Value	Default	Information
TaskId	Yes	Any Name		The Identifier of the Task
Shape	Yes	SQUARE/CIRCLE		The Shape of the Generation
CenterX / CenterZ	Yes	Any Number (in Chunks)		The Center Position of the Pregeneration. Supports Relative values to (~). if Advanced Arguments enabled also Spawn location (^)
MinRadius	Yes	Any Number (in Chunks)		The Minimum Radius the Pregeneration should start
MaxRadius	Yes	Any Number (in Chunks)		The Maximum Radius the Pregeneration should stop
Dimension	No	Any Valid DimensionId	The Dimension you are in. Server Console defaults to overworld.	Decides which dimension the pregeneration should be in
Generation Type	No	Any Valid Type	FAST_CHECK_GEN	Please check out the Generation type Section

Examples:

Command	Action
/pregen start gen expansion GenExample SQUARE 0 0 100 300	Starts a Square Expansion task from 100 to 300 chunk Radius. In the Dimension you are in with the TaskId "GenExample"
/pregen start gen expansion GenExample SQUARE ~ ~ 100 300 minecraft:the_nether	Starts a Square Expansion task around you from 100 to 300 chunk Radius. In the Nether with the TaskId "GenExample"

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${\underline{\text{WorldBorder}}}$

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The WorldBorder command is a simplification Command.
It will simply create a task that generates within the Confines of the Worldborder. Simplifying the entire process. Note: Custom Worldborder shapes are not supported!

Command Structure:

/pregen start gen worldborder TaskId Dimension GenerationType

Argument	Required	Valid Value	Default	Information
TaskId	Yes	Any Name		The Identifier of the Task
Dimension	No	Any Valid DimensionId	The Dimension you are in. Server Console defaults to overworld.	Decides which dimension the pregeneration should be in
Generation Type	No	Any Valid Type	FAST_CHECK_GEN	Please check out the Generation type Section

Examples:

Command	Action
/pregen start gen worldborder GenExample	Starts a Pregen Task of the size of the Worldborder. In the dimension you are in with the TaskId "GenExample"

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${\underline{\text{Benchmark}}}$

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The Benchmark commands are there to allow you to test performance of the worldgen mods.
NOTE: THIS IS NOT FOR THE AVERAGE USER! THIS IS MOSTLY FOR PACKDEVS OR HARDWARE TESTERS

Command Structure:

/pregen start benchmark start taskSize SendAnlytics

Argument	Required	Valid Value	Default	Information
taskSize	false	Adv Arguments: Enabled: SMALL_TASK/LARGE_TASK Disabled:true/false	SMALL_TASK/true	The Size of the Benchmark. SmallTask: 40k Chunks LargeTask: 250k Chunks
SendAnlytics	false	true/false	false	Sends the Result to a collection Server to allow the dev to see benchmarks

Small Note: Enabling analytics sends your UUID + Session UUID + Hardware info to the analytics server.
It is disabled by default though.

There is ofcourse a few other commands so lets list them here too with a benchmark example:

Command	Action
/pregen start benchmark start	Starts a Small Benchmark Task in every single dimension. Doesn't send analytics
/pregen start benchmark start LARGE_TASK	Starts a Large Benchmark Task in every single dimension. Doesn't send analytics
/pregen start benchmark SMALL_TASK true	Starts a Small Benchmark Task in every single dimension. Sends analytics
/pregen start benchmark info	Provides information about how benchmarks work and how the results are processed
/pregen start benchmark submit-cache	Sends the Result Cache of all benchmarks done to the Analytics Server

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${\underline{\text{Deletion Commands}}}$

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Sometimes you have generated to much or need to prune chunks that are only temporary.
Or you want to straight up get rid of terrain.
Usually you use Third Party Tools like MCEdit or others to achieve that.
Though this isn't really needed since Chunk Pregen can do such a Task on the fly.
Also amazingly fast too. Depending on your hardware it can delete tens of thousands of chunks per second.
And it will not delete Loaded Chunks.

${\underline{\text{Radius}}}$

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The Radius Deletion Command is your most basic Task out there.
It will delete everything up to the defined radius.

Command Strucutre:

/pregen start delete radius TaskId Shape CenterX CenterZ Radius Dimension

Argument	Required	Valid Value	Default	Information
TaskId	Yes	Any Name		The Identifier of the Task
Shape	Yes	SQUARE/CIRCLE		The Shape of the Generation
CenterX / CenterZ	Yes	Any Number (in Chunks)		The Center Position of the Deletion. Supports Relative values to (~). if Advanced Arguments enabled also Spawn location (^)
Radius	Yes	Any Number (in Chunks)		How big the Deletion Task should be
Dimension	No	Any Valid DimensionId	The Dimension you are in. Server Console defaults to overworld.	Decides which dimension the Delection Task should be in

Examples:

Command	Action
/pregen start delete radius DeletionExample SQUARE 0 0 100	Starts a 100 Radius Square Deletion task. In the Dimension you are in with the TaskId "DeletionExample"
/pregen start delete radius DeletionExample CIRCLE 0 0 250 minecraft:the_nether	Starts a 250 Radius Circle Deletion task. In the Nether with the TaskId "DeletionExample"
/pregen start delete radius DeletionExample SQUARE ~ ~ 100	Starts a 100 Radius Square Deletion task around you. In the Dimension you are in with the TaskId "DeletionExample"
/pregen start delete radius DeletionExample SQUARE ^ ^ 100	Starts a 100 Radius Square Deletion task around you. In the Dimension you are in with the TaskId "DeletionExample" Requires Adv Arguments enabled in the config

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${\underline{\text{Expansion}}}$

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The Expansion Command is your first way to deal with Temporary chunks you want to prune over time.
It provides a Minimum save Radius and a Maximum Radius it will go.

Command Strucutre:

/pregen start delete expansion TaskId Shape CenterX CenterZ MinRadius MaxRadius Dimension

Argument	Required	Valid Value	Default	Information
TaskId	Yes	Any Name		The Identifier of the Task
Shape	Yes	SQUARE/CIRCLE		The Shape of the Generation
CenterX / CenterZ	Yes	Any Number (in Chunks)		The Center Position of the Deletion. Supports Relative values to (~). if Advanced Arguments enabled also Spawn location (^)
MinRadius	Yes	Any Number (in Chunks)		At which Radius the Deletion should begin
MaxRadius	Yes	Any Number (in Chunks)		At which Radius the Deletion should stop
Dimension	No	Any Valid DimensionId	The Dimension you are in. Server Console defaults to overworld.	Decides which dimension the Delection Task should be in

Examples:

Command	Action
/pregen start delete expansion DeletionExample SQUARE 0 0 100 300	Starts a Deletion Task that deletes everything between a 100 to 300 chunk Radius. In the Dimension you are in with the TaskId "DeletionExample"
/pregen start delete expansion DeletionExample SQUARE ~ ~ 100 300 minecraft:the_nether	Starts a Deletion Task around you that deletes everything between a 100 to 300 chunk Radius. In the Nether with the TaskId "DeletionExample"

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${\underline{\text{Trim}}}$

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The Trim Command is your Inverse Radius command that allows deletion a bit more controlled!
Instead of Deleting Inside out it deletes Outside in.
Where you provide a Minimum Safe radius instead of a Maximum Deletion Radius.

Command Structure:

/pregen start delete trim TaskId MinRadius Dimension

Argument	Required	Valid Value	Default	Information
TaskId	Yes	Any Name		The Identifier of the Task
CenterX / CenterZ	Yes	Any Number (in Chunks)		The Center Position of the Trim. Supports Relative values to (~). if Advanced Arguments enabled also Spawn location (^)
MinRadius	Yes	Any Number (in Chunks)		How big the Safe area should be
Dimension	No	Any Valid DimensionId	The Dimension you are in. Server Console defaults to overworld.	Decides which dimension the Delection Task should be in

Examples:

Command	Action
/pregen start delete trim DeletionExample 0 0 100 minecraft:the_end	Deletes any chunk Further out then 100 chunks from the center of the world. In the End Dimension with the TaskId "DeletionExample"

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${\underline{\text{Timed Trim}}}$

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The Timed Trim task is a much more advanced Deletion Task.
It can read how long a Chunk has been Occupied by a player and uses that information to filter chunks that have been not occupied long enough.

Command Structure:

/pregen start delete timedtrim TaskId MinRadius MinTime Dimension

Argument	Required	Valid Value	Default	Information
TaskId	Yes	Any Name		The Identifier of the Task
CenterX / CenterZ	Yes	Any Number (in Chunks)		The Center Position of the TimedTrim. Supports Relative values to (~). if Advanced Arguments enabled also Spawn location (^)
MinRadius	Yes	Any Number (in Chunks)		How big the Safe area should be
MinTime	Yes	Any Number (Minecraft Time)		Decides how long a Chunk has to be occupied. Otherwise it will get deleted.
Dimension	No	Any Valid DimensionId	The Dimension you are in. Server Console defaults to overworld.	Decides which dimension the Delection Task should be in

Examples: Examples:

Command	Action
/pregen start delete timedtrim DeletionExample 0 0 100 1d minecraft:the_end	Deletes any Chunk that is further out then 100 chunks from the center and was not loaded longer then 1 minecraft day by a player. In the End with the TaskId "DeletionExample"

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${\underline{\text{Utility Commands}}}$

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This section is the Utilities Section where all the Helpful commands can be that you might need.

${\underline{\text{Info Commands}}}$

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Chunk Pregenerator is a Information heavy Mod.
During Pregeneration it can spam your chat with a lot.
But it has a special UI that might not require you to have such a chat spam.

It can be simply turned on/off with the following commands:

Command	Action
/pregen info listen	Makes you listen to any active Task running.
/pregen info unlisten	Makes you stop listening to active Tasks.

Now sometimes you want to define if you automatically listen or not listen to tasks so you don't have to write these things again and again.
Well the following commands make this also quite possible!

Command	Action
/pregen info autolisten enable	Makes you automatically listen to any task started by any player
/pregen info autolisten disable	Makes you automatically ignore all tasks started, including yours
/pregen info autolisten reset	Sets you back to the default, only automatically listening to tasks you started

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${\underline{\text{Dimension Commands (1.16+)}}}$

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Since 1.16 minecraft enforces that all dimensions have to be loaded all the time.
Chunk Pregenerator provides a implementation that you can turn of unused dimensions so they won't take up extra performance!
Note: You can't go into these dimensions when they are disabled!!!

Here is the list of commands:

Command	Action
/pregen utils dimension enable dimensionId	Enables the Selected dimension
/pregen utils dimension disable dimensionId	Disables the Selected dimension
/pregen utils dimension info	Describes what the feature does

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${\underline{\text{Profiler Commands (Requires Expansion)}}}$

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Chunk Pregenerator also adds a few Profiling Tools.
Which require the expansion to be used.

Command	Action
/pregen utils profiler enable	Enables the Profiling UI
/pregen utils profiler disable	Disables the Profiling UI
/pregen utils gc	Runs Javas Garbage Collection. On Dedicated servers if that takes to long this can crash the server!

The Profiling UI provides you with live stats such as:

• Server TPS/Usage
• Server Ram Usage
• Live Stats about: Entities/TileEntities/Packets/BlockUpdates/etc
• In general how the server is doing Note that the UI is not free to use. It requires to be a supporter!

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${\underline{\text{Performance Commands (1.12.2 or Older)}}}$

--- The Performance commands are there so you can control how much performance the mod uses on worldgeneration vs gameplay.

Command	Action	Default
/pregen utils priorty PREGENERATOR /pregen utils priorty GAME	Toggles the CPU priority of the pregenerator. PREGNERATOR: The pregenerator gets priority. GAME: The Game Gets the Priority	GAME
/pregen utils timePerTick 250	Sets the maximum time in Milliseconds of how long the pregenerator should work on chunk generation per tick Above 50 will lag the game. Above 250 will crash servers	40

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${\underline{\text{Structure Commands (1.12.2 or Older)}}}$

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Structure Commands allow you control over Structure listing/removal/prevention of generating.

${\underline{\text{List}}}$

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Lists all the Structures in the world

Command Structure:

/pregen structure list Dimension StructureType

Argument	Required	Valid Value	Default	Information
Dimension	No	Any Valid DimensionId	The Dimension you are in. Server Console defaults to overworld.	Defines which dimension the structures information should be pulled from
StructureType	No	Any Valid StructureId or "All"	"All"	Defines the Type Of Structure that should be listed

Examples:

Command	Action
/pregen structure list 0 Mineshaft	Lists all the structures in the overworld of the type "Mineshaft"

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${\underline{\text{Delete}}}$

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Command Structure:

/pregen structure delete Dimension StructureType StructurePosition RemoveFromWorld

Argument	Required	Valid Value	Default	Information
Dimension	Yes	Any Valid DimensionId		The Dimension the structure should be deleted in.
StructureType	Yes	Any Valid StructureId or "All"		Defines which type of structure should be deleted
StructurePosition	Yes	X & Z Coordinates		Defines the location of the Structure
RemoveFromWorld	No	True/False	false	Defines if the structure should be deleted from the world Or if just the reference should be deleted

Examples:

Command	Action
/pregen structure delete 0 Mineshaft 78 80 true	Deletes a Village in the Overworld at location 78 80 and deletes it from the world.

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TODO finish me!

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${\underline{\text{Retrogen Commands}}}$

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Chunk Pregenerator also comes with a Retrogenerator included.
Instead of Having Players run around to cause retrogeneration.
The Pregenerator just loads every single chunk and retrogenerates everything for you.
NOTE: The Retrogenerator can not force a worldgenerator to act. It only suggests it to said worldgenerator.
But the World Generator the final say

Command	Action
/pregen retrogen show	Shows you all active Retrogenerators
/pregen retrogen add [WorldGeneratorId]	Adds a selected WorldGenerator to the Active Retrogeneration List.
/pregen retrogen remove [WorldGeneratorId]	Removes a selected WorldGenerator from the Active Retrogeneration List.

Examples:

Command	Action
/pregen retrogen add minecraft:basalt_pillar	Adds Birch Trees to the Active Retrogen Lists
/pregen retrogen remove minecraft:basalt_pillar	Removes Birch Trees from the Active Retrogen Lists

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