net.minecraft.world.chunk

Class Chunk

java.lang.Object

net.minecraft.world.chunk.Chunk

Direct Known Subclasses:

EmptyChunk

public class Chunk
extends java.lang.Object

Field Summary

Fields

Modifier and Type	Field and Description
java.util.Map	chunkTileEntityMap A Map of ChunkPositions to TileEntities in this chunk
java.util.List[]	entityLists Array of Lists containing the entities in this Chunk.
boolean	field_150815_m
boolean	hasEntities Whether this Chunk has any Entities and thus requires saving on every tick
int[]	heightMap
int	heightMapMinimum Lowest value in the heightmap.
long	inhabitedTime the cumulative number of ticks players have been in this chunk
boolean	isChunkLoaded Whether or not this Chunk is currently loaded into the World
boolean	isLightPopulated
static boolean	isLit Determines if the chunk is lit or not at a light value greater than 0.
boolean	isModified Set to true if the chunk has been modified and needs to be updated internally.
boolean	isTerrainPopulated Boolean value indicating if the terrain is populated.
long	lastSaveTime The time according to World.worldTime when this chunk was last saved
int[]	precipitationHeightMap A map, similar to heightMap, that tracks how far down precipitation can fall.
boolean	sendUpdates Updates to this chunk will not be sent to clients if this is false.
boolean[]	updateSkylightColumns Which columns need their skylightMaps updated.
World	worldObj Reference to the World object.
int	xPosition The x coordinate of the chunk.
int	zPosition The z coordinate of the chunk.

Constructor Summary

Constructors

Constructor and Description
Chunk(World p_i45447_1_, Block[] p_i45447_2_, byte[] p_i45447_3_, int p_i45447_4_, int p_i45447_5_)
Chunk(World p_i45446_1_, Block[] p_i45446_2_, int p_i45446_3_, int p_i45446_4_)
Chunk(World p_i1995_1_, int p_i1995_2_, int p_i1995_3_)

Method Summary

Modifier and Type	Method and Description
void	addEntity(Entity p_76612_1_) Adds an entity to the chunk.
void	addTileEntity(TileEntity p_150813_1_)
boolean	canBlockSeeTheSky(int p_76619_1_, int p_76619_2_, int p_76619_3_) Returns whether is not a block above this one blocking sight to the sky (done via checking against the heightmap)
void	enqueueRelightChecks() Called once-per-chunk-per-tick, and advances the round-robin relight check index per-storage-block by up to 8 blocks at a time.
void	fillChunk(byte[] p_76607_1_, int p_76607_2_, int p_76607_3_, boolean p_76607_4_) Initialise this chunk with new binary data
boolean	func_150802_k()
void	func_150804_b(boolean p_150804_1_)
TileEntity	func_150806_e(int p_150806_1_, int p_150806_2_, int p_150806_3_)
boolean	func_150807_a(int p_150807_1_, int p_150807_2_, int p_150807_3_, Block p_150807_4_, int p_150807_5_)
int	func_150808_b(int p_150808_1_, int p_150808_2_, int p_150808_3_)
void	func_150809_p()
void	func_150812_a(int p_150812_1_, int p_150812_2_, int p_150812_3_, TileEntity p_150812_4_)
void	generateHeightMap() Generates the height map for a chunk from scratch
void	generateSkylightMap() Generates the initial skylight map for the chunk upon generation or load.
boolean	getAreLevelsEmpty(int p_76606_1_, int p_76606_2_) Returns whether the ExtendedBlockStorages containing levels (in blocks) from arg 1 to arg 2 are fully empty (true) or not (false).
byte[]	getBiomeArray() Returns an array containing a 16x16 mapping on the X/Z of block positions in this Chunk to biome IDs.
BiomeGenBase	getBiomeGenForWorldCoords(int p_76591_1_, int p_76591_2_, WorldChunkManager p_76591_3_) This method retrieves the biome at a set of coordinates
Block	getBlock(int p_150810_1_, int p_150810_2_, int p_150810_3_) Returns the block corresponding to the given coordinates inside a chunk.
int	getBlockLightValue(int p_76629_1_, int p_76629_2_, int p_76629_3_, int p_76629_4_) Gets the amount of light on a block taking into account sunlight
int	getBlockMetadata(int p_76628_1_, int p_76628_2_, int p_76628_3_) Return the metadata corresponding to the given coordinates inside a chunk.
ExtendedBlockStorage[]	getBlockStorageArray() Returns the ExtendedBlockStorage array for this Chunk.
ChunkCoordIntPair	getChunkCoordIntPair() Gets a ChunkCoordIntPair representing the Chunk's position.
void	getEntitiesOfTypeWithinAAAB(java.lang.Class p_76618_1_, AxisAlignedBB p_76618_2_, java.util.List p_76618_3_, IEntitySelector p_76618_4_) Gets all entities that can be assigned to the specified class.
void	getEntitiesWithinAABBForEntity(Entity p_76588_1_, AxisAlignedBB p_76588_2_, java.util.List p_76588_3_, IEntitySelector p_76588_4_) Fills the given list of all entities that intersect within the given bounding box that aren't the passed entity Args: entity, aabb, listToFill
int	getHeightValue(int p_76611_1_, int p_76611_2_) Returns the value in the height map at this x, z coordinate in the chunk
int	getPrecipitationHeight(int p_76626_1_, int p_76626_2_) Gets the height to which rain/snow will fall.
java.util.Random	getRandomWithSeed(long p_76617_1_)
int	getSavedLightValue(EnumSkyBlock p_76614_1_, int p_76614_2_, int p_76614_3_, int p_76614_4_) Gets the amount of light saved in this block (doesn't adjust for daylight)
TileEntity	getTileEntityUnsafe(int x, int y, int z) Retrieves the tile entity, WITHOUT creating it.
int	getTopFilledSegment() Returns the topmost ExtendedBlockStorage instance for this Chunk that actually contains a block.
boolean	isAtLocation(int p_76600_1_, int p_76600_2_) Checks whether the chunk is at the X/Z location specified
boolean	isEmpty()
boolean	needsSaving(boolean p_76601_1_) Returns true if this Chunk needs to be saved
void	onChunkLoad() Called when this Chunk is loaded by the ChunkProvider
void	onChunkUnload() Called when this Chunk is unloaded by the ChunkProvider
void	populateChunk(IChunkProvider p_76624_1_, IChunkProvider p_76624_2_, int p_76624_3_, int p_76624_4_)
void	removeEntity(Entity p_76622_1_) removes entity using its y chunk coordinate as its index
void	removeEntityAtIndex(Entity p_76608_1_, int p_76608_2_) Removes entity at the specified index from the entity array.
void	removeInvalidTileEntity(int x, int y, int z) Removes the tile entity at the specified position, only if it's marked as invalid.
void	removeTileEntity(int p_150805_1_, int p_150805_2_, int p_150805_3_)
void	resetRelightChecks() Resets the relight check index to 0 for this Chunk.
void	setBiomeArray(byte[] p_76616_1_) Accepts a 256-entry array that contains a 16x16 mapping on the X/Z plane of block positions in this Chunk to biome IDs.
boolean	setBlockMetadata(int p_76589_1_, int p_76589_2_, int p_76589_3_, int p_76589_4_) Set the metadata of a block in the chunk
void	setChunkModified() Sets the isModified flag for this Chunk
void	setLightValue(EnumSkyBlock p_76633_1_, int p_76633_2_, int p_76633_3_, int p_76633_4_, int p_76633_5_) Sets the light value at the coordinate.
void	setStorageArrays(ExtendedBlockStorage[] p_76602_1_)

Methods inherited from class java.lang.Object

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

Field Detail

isLit

public static boolean isLit

Determines if the chunk is lit or not at a light value greater than 0.

precipitationHeightMap

public int[] precipitationHeightMap

A map, similar to heightMap, that tracks how far down precipitation can fall.

updateSkylightColumns

public boolean[] updateSkylightColumns

Which columns need their skylightMaps updated.

isChunkLoaded

public boolean isChunkLoaded

Whether or not this Chunk is currently loaded into the World

worldObj

public World worldObj

Reference to the World object.

heightMap

public int[] heightMap

xPosition

public final int xPosition

The x coordinate of the chunk.

zPosition

public final int zPosition

The z coordinate of the chunk.

chunkTileEntityMap

public java.util.Map chunkTileEntityMap

A Map of ChunkPositions to TileEntities in this chunk

entityLists

public java.util.List[] entityLists

Array of Lists containing the entities in this Chunk. Each List represents a 16 block subchunk.

isTerrainPopulated

public boolean isTerrainPopulated

Boolean value indicating if the terrain is populated.

isLightPopulated

public boolean isLightPopulated

field_150815_m

public boolean field_150815_m

isModified

public boolean isModified

Set to true if the chunk has been modified and needs to be updated internally.

hasEntities

public boolean hasEntities

Whether this Chunk has any Entities and thus requires saving on every tick

lastSaveTime

public long lastSaveTime

The time according to World.worldTime when this chunk was last saved

sendUpdates

public boolean sendUpdates

Updates to this chunk will not be sent to clients if this is false. This field is set to true the first time the chunk is sent to a client, and never set to false.

heightMapMinimum

public int heightMapMinimum

Lowest value in the heightmap.

inhabitedTime

public long inhabitedTime

the cumulative number of ticks players have been in this chunk

Constructor Detail

Chunk

public Chunk(World p_i1995_1_,
             int p_i1995_2_,
             int p_i1995_3_)

Chunk

public Chunk(World p_i45446_1_,
             Block[] p_i45446_2_,
             int p_i45446_3_,
             int p_i45446_4_)

Chunk

public Chunk(World p_i45447_1_,
             Block[] p_i45447_2_,
             byte[] p_i45447_3_,
             int p_i45447_4_,
             int p_i45447_5_)

Method Detail

isAtLocation

public boolean isAtLocation(int p_76600_1_,
                            int p_76600_2_)

Checks whether the chunk is at the X/Z location specified

getHeightValue

public int getHeightValue(int p_76611_1_,
                          int p_76611_2_)

Returns the value in the height map at this x, z coordinate in the chunk

getTopFilledSegment

public int getTopFilledSegment()

Returns the topmost ExtendedBlockStorage instance for this Chunk that actually contains a block.

getBlockStorageArray

public ExtendedBlockStorage[] getBlockStorageArray()

Returns the ExtendedBlockStorage array for this Chunk.

generateHeightMap

public void generateHeightMap()

Generates the height map for a chunk from scratch

generateSkylightMap

public void generateSkylightMap()

Generates the initial skylight map for the chunk upon generation or load.

func_150808_b

public int func_150808_b(int p_150808_1_,
                         int p_150808_2_,
                         int p_150808_3_)

getBlock

public Block getBlock(int p_150810_1_,
                      int p_150810_2_,
                      int p_150810_3_)

Returns the block corresponding to the given coordinates inside a chunk.

getBlockMetadata

public int getBlockMetadata(int p_76628_1_,
                            int p_76628_2_,
                            int p_76628_3_)

Return the metadata corresponding to the given coordinates inside a chunk.

func_150807_a

public boolean func_150807_a(int p_150807_1_,
                             int p_150807_2_,
                             int p_150807_3_,
                             Block p_150807_4_,
                             int p_150807_5_)

setBlockMetadata

public boolean setBlockMetadata(int p_76589_1_,
                                int p_76589_2_,
                                int p_76589_3_,
                                int p_76589_4_)

Set the metadata of a block in the chunk

getSavedLightValue

public int getSavedLightValue(EnumSkyBlock p_76614_1_,
                              int p_76614_2_,
                              int p_76614_3_,
                              int p_76614_4_)

Gets the amount of light saved in this block (doesn't adjust for daylight)

setLightValue

public void setLightValue(EnumSkyBlock p_76633_1_,
                          int p_76633_2_,
                          int p_76633_3_,
                          int p_76633_4_,
                          int p_76633_5_)

Sets the light value at the coordinate. If enumskyblock is set to sky it sets it in the skylightmap and if its a block then into the blocklightmap. Args enumSkyBlock, x, y, z, lightValue

getBlockLightValue

public int getBlockLightValue(int p_76629_1_,
                              int p_76629_2_,
                              int p_76629_3_,
                              int p_76629_4_)

Gets the amount of light on a block taking into account sunlight

addEntity

public void addEntity(Entity p_76612_1_)

Adds an entity to the chunk. Args: entity

removeEntity

public void removeEntity(Entity p_76622_1_)

removes entity using its y chunk coordinate as its index

removeEntityAtIndex

public void removeEntityAtIndex(Entity p_76608_1_,
                                int p_76608_2_)

Removes entity at the specified index from the entity array.

canBlockSeeTheSky

public boolean canBlockSeeTheSky(int p_76619_1_,
                                 int p_76619_2_,
                                 int p_76619_3_)

Returns whether is not a block above this one blocking sight to the sky (done via checking against the heightmap)

func_150806_e

public TileEntity func_150806_e(int p_150806_1_,
                                int p_150806_2_,
                                int p_150806_3_)

addTileEntity

public void addTileEntity(TileEntity p_150813_1_)

func_150812_a

public void func_150812_a(int p_150812_1_,
                          int p_150812_2_,
                          int p_150812_3_,
                          TileEntity p_150812_4_)

removeTileEntity

public void removeTileEntity(int p_150805_1_,
                             int p_150805_2_,
                             int p_150805_3_)

onChunkLoad

public void onChunkLoad()

Called when this Chunk is loaded by the ChunkProvider

onChunkUnload

public void onChunkUnload()

Called when this Chunk is unloaded by the ChunkProvider

setChunkModified

public void setChunkModified()

Sets the isModified flag for this Chunk

getEntitiesWithinAABBForEntity

public void getEntitiesWithinAABBForEntity(Entity p_76588_1_,
                                           AxisAlignedBB p_76588_2_,
                                           java.util.List p_76588_3_,
                                           IEntitySelector p_76588_4_)

Fills the given list of all entities that intersect within the given bounding box that aren't the passed entity Args: entity, aabb, listToFill

getEntitiesOfTypeWithinAAAB

public void getEntitiesOfTypeWithinAAAB(java.lang.Class p_76618_1_,
                                        AxisAlignedBB p_76618_2_,
                                        java.util.List p_76618_3_,
                                        IEntitySelector p_76618_4_)

Gets all entities that can be assigned to the specified class. Args: entityClass, aabb, listToFill

needsSaving

public boolean needsSaving(boolean p_76601_1_)

Returns true if this Chunk needs to be saved

getRandomWithSeed

public java.util.Random getRandomWithSeed(long p_76617_1_)

isEmpty

public boolean isEmpty()

populateChunk

public void populateChunk(IChunkProvider p_76624_1_,
                          IChunkProvider p_76624_2_,
                          int p_76624_3_,
                          int p_76624_4_)

getPrecipitationHeight

public int getPrecipitationHeight(int p_76626_1_,
                                  int p_76626_2_)

Gets the height to which rain/snow will fall. Calculates it if not already stored.

func_150804_b

public void func_150804_b(boolean p_150804_1_)

func_150802_k

public boolean func_150802_k()

getChunkCoordIntPair

public ChunkCoordIntPair getChunkCoordIntPair()

Gets a ChunkCoordIntPair representing the Chunk's position.

getAreLevelsEmpty

public boolean getAreLevelsEmpty(int p_76606_1_,
                                 int p_76606_2_)

Returns whether the ExtendedBlockStorages containing levels (in blocks) from arg 1 to arg 2 are fully empty (true) or not (false).

setStorageArrays

public void setStorageArrays(ExtendedBlockStorage[] p_76602_1_)

fillChunk

public void fillChunk(byte[] p_76607_1_,
                      int p_76607_2_,
                      int p_76607_3_,
                      boolean p_76607_4_)

Initialise this chunk with new binary data

getBiomeGenForWorldCoords

public BiomeGenBase getBiomeGenForWorldCoords(int p_76591_1_,
                                              int p_76591_2_,
                                              WorldChunkManager p_76591_3_)

This method retrieves the biome at a set of coordinates

getBiomeArray

public byte[] getBiomeArray()

Returns an array containing a 16x16 mapping on the X/Z of block positions in this Chunk to biome IDs.

setBiomeArray

public void setBiomeArray(byte[] p_76616_1_)

Accepts a 256-entry array that contains a 16x16 mapping on the X/Z plane of block positions in this Chunk to biome IDs.

resetRelightChecks

public void resetRelightChecks()

Resets the relight check index to 0 for this Chunk.

enqueueRelightChecks

public void enqueueRelightChecks()

Called once-per-chunk-per-tick, and advances the round-robin relight check index per-storage-block by up to 8 blocks at a time. In a worst-case scenario, can potentially take up to 1.6 seconds, calculated via (4096/(8*16))/20, to re-check all blocks in a chunk, which could explain both lagging light updates in certain cases as well as Nether relight

func_150809_p

public void func_150809_p()

getTileEntityUnsafe

public TileEntity getTileEntityUnsafe(int x,
                                      int y,
                                      int z)

Retrieves the tile entity, WITHOUT creating it. Good for checking if it exists.

Parameters:

x -

y -

z -

Returns:

The tile entity at the specified location, if it exists and is valid.

removeInvalidTileEntity

public void removeInvalidTileEntity(int x,
                                    int y,
                                    int z)

Removes the tile entity at the specified position, only if it's marked as invalid.

Parameters:

x -

y -

z -