Package org.bukkit.generator

Class BlockPopulator

java.lang.Object

org.bukkit.generator.BlockPopulator

public abstract class BlockPopulator
extends Object

A block populator is responsible for generating a small area of blocks.

For example, generating glowstone inside the nether or generating dungeons full of treasure

A BlockPopulator can be used in combination with a custom ChunkGenerator by returning it in the method ChunkGenerator.getDefaultPopulators(World) or by adding it manually to the worlds populator list returned by World.getPopulators().

When adding a BlockPopulator manually to a world it is recommended to do so during the WorldInitEvent.

Constructor Summary

Constructors

Constructor	Description
BlockPopulator()

Method Summary

Modifier and Type	Method	Description
void	populate(WorldInfo worldInfo, Random random, int chunkX, int chunkZ, LimitedRegion limitedRegion)	Populates an area of blocks at or around the given chunk.
void	populate(World world, Random random, Chunk source)	Deprecated. Use populate(WorldInfo, Random, int, int, LimitedRegion)

Methods inherited from class java.lang.Object

clone, equals, finalize, getClass, hashCode, notify, notifyAll, toString, wait, wait, wait

Constructor Details

BlockPopulator

public BlockPopulator()

Method Details

populate

@Deprecated(since="1.17.1")
public void populate(@NotNull
 World world,
 @NotNull
 Random random,
 @NotNull
 Chunk source)

Deprecated.

Use populate(WorldInfo, Random, int, int, LimitedRegion)

Populates an area of blocks at or around the given chunk.

The chunks on each side of the specified chunk must already exist; that is, there must be one north, east, south and west of the specified chunk. The "corner" chunks may not exist, in which scenario the populator should record any changes required for those chunks and perform the changes when they are ready.

Parameters:

world - The world to generate in

random - The random generator to use

source - The chunk to generate for

populate

public void populate(@NotNull
 WorldInfo worldInfo,
 @NotNull
 Random random,
 int chunkX,
 int chunkZ,
 @NotNull
 LimitedRegion limitedRegion)

Populates an area of blocks at or around the given chunk.

Notes:

This method should never attempt to get the Chunk at the passed coordinates, as doing so may cause an infinite loop

This method should never modify a LimitedRegion at a later point of time.

This method must be completely thread safe and able to handle multiple concurrent callers.

No physics are applied, whether or not it is set to true in BlockState.update(boolean, boolean)

Only use the BlockState returned by LimitedRegion, never use methods from a World to modify the chunk.

Parameters:

worldInfo - The world info of the world to generate in

random - The random generator to use

chunkX - The X-coordinate of the chunk

chunkZ - The Z-coordinate of the chunk

limitedRegion - The chunk region to populate