Package org.bukkit.generator

Class ChunkGenerator

java.lang.Object

org.bukkit.generator.ChunkGenerator

public abstract class ChunkGenerator
extends Object

A chunk generator is responsible for the initial shaping of an entire chunk. For example, the nether chunk generator should shape netherrack and soulsand. By default only one thread will call generateChunkData(org.bukkit.World, java.util.Random, int, int, org.bukkit.generator.ChunkGenerator.BiomeGrid) at a time, although this may not necessarily be the main server thread. If your generator is capable of fully asynchronous generation, then isParallelCapable() should be overriden accordingly to allow multiple concurrent callers.

Nested Class Summary

Nested Classes

Modifier and Type	Class	Description
static interface	ChunkGenerator.BiomeGrid	Interface to biome section for chunk to be generated: initialized with default values for world type and seed.
static interface	ChunkGenerator.ChunkData	Data for a Chunk.

Constructor Summary

Constructors

Constructor	Description
ChunkGenerator()

Method Summary

Modifier and Type	Method	Description
boolean	canSpawn(World world, int x, int z)	Tests if the specified location is valid for a natural spawn position
protected ChunkGenerator.ChunkData	createChunkData(World world)	Create a ChunkData for a world.
ChunkGenerator.ChunkData	generateChunkData(World world, Random random, int x, int z, ChunkGenerator.BiomeGrid biome)	Shapes the chunk for the given coordinates.
List<BlockPopulator>	getDefaultPopulators(World world)	Gets a list of default BlockPopulators to apply to a given world
Location	getFixedSpawnLocation(World world, Random random)	Gets a fixed spawn location to use for a given world.
boolean	isParallelCapable()	Gets if this ChunkGenerator is parallel capable.

Methods inherited from class java.lang.Object

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

Constructor Detail

ChunkGenerator

public ChunkGenerator()

Method Detail

generateChunkData

@NotNull
public ChunkGenerator.ChunkData generateChunkData(@NotNull
                                                  World world,
                                                  @NotNull
                                                  Random random,
                                                  int x,
                                                  int z,
                                                  @NotNull
                                                  ChunkGenerator.BiomeGrid biome)

Shapes the chunk for the given coordinates. This method must return a ChunkData.

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 ChunkData after it has been returned.

This method must return a ChunkData returned by createChunkData(org.bukkit.World)

Parameters:

world - The world this chunk will be used for

random - The random generator to use

x - The X-coordinate of the chunk

z - The Z-coordinate of the chunk

biome - Proposed biome values for chunk - can be updated by generator

Returns:

ChunkData containing the types for each block created by this generator

createChunkData

@NotNull
protected final ChunkGenerator.ChunkData createChunkData(@NotNull
                                                         World world)

Create a ChunkData for a world.

Parameters:

world - the world the ChunkData is for

Returns:

a new ChunkData for world

canSpawn

public boolean canSpawn(@NotNull
                        World world,
                        int x,
                        int z)

Tests if the specified location is valid for a natural spawn position

Parameters:

world - The world we're testing on

x - X-coordinate of the block to test

z - Z-coordinate of the block to test

Returns:

true if the location is valid, otherwise false

getDefaultPopulators

@NotNull
public List<BlockPopulator> getDefaultPopulators(@NotNull
                                                 World world)

Gets a list of default BlockPopulators to apply to a given world

Parameters:

world - World to apply to

Returns:

List containing any amount of BlockPopulators

getFixedSpawnLocation

@Nullable
public Location getFixedSpawnLocation(@NotNull
                                      World world,
                                      @NotNull
                                      Random random)

Gets a fixed spawn location to use for a given world.

A null value is returned if a world should not use a fixed spawn point, and will instead attempt to find one randomly.

Parameters:

world - The world to locate a spawn point for

random - Random generator to use in the calculation

Returns:

Location containing a new spawn point, otherwise null

isParallelCapable

public boolean isParallelCapable()

Gets if this ChunkGenerator is parallel capable. See ChunkGenerator for more information.

Returns:

parallel capable status