package net.minecraft.world.chunk;
import cpw.mods.fml.relauncher.Side;
import cpw.mods.fml.relauncher.SideOnly;
import java.util.ArrayList;
import java.util.Arrays;
import java.util.HashMap;
import java.util.Iterator;
import java.util.List;
import java.util.Map;
import java.util.Random;
import net.minecraft.block.Block;
import net.minecraft.block.ITileEntityProvider;
import net.minecraft.block.material.Material;
import net.minecraft.command.IEntitySelector;
import net.minecraft.entity.Entity;
import net.minecraft.tileentity.TileEntity;
import net.minecraft.util.AxisAlignedBB;
import net.minecraft.util.MathHelper;
import net.minecraft.world.ChunkCoordIntPair;
import net.minecraft.world.ChunkPosition;
import net.minecraft.world.EnumSkyBlock;
import net.minecraft.world.World;
import net.minecraft.world.biome.BiomeGenBase;
import net.minecraft.world.biome.WorldChunkManager;
import net.minecraft.world.chunk.storage.ExtendedBlockStorage;
import net.minecraftforge.common.MinecraftForge;
import net.minecraftforge.event.entity.EntityEvent;
import net.minecraftforge.event.world.ChunkEvent;
public class Chunk
{
/**
* Determines if the chunk is lit or not at a light value greater than 0.
*/
public static boolean isLit;
/**
* Used to store block IDs, block MSBs, Sky-light maps, Block-light maps, and metadata. Each entry corresponds to a
* logical segment of 16x16x16 blocks, stacked vertically.
*/
private ExtendedBlockStorage[] storageArrays;
/**
* Contains a 16x16 mapping on the X/Z plane of the biome ID to which each colum belongs.
*/
private byte[] blockBiomeArray;
/**
* A map, similar to heightMap, that tracks how far down precipitation can fall.
*/
public int[] precipitationHeightMap;
/** Which columns need their skylightMaps updated. */
public boolean[] updateSkylightColumns;
/** Whether or not this Chunk is currently loaded into the World */
public boolean isChunkLoaded;
/** Reference to the World object. */
public World worldObj;
public int[] heightMap;
/** The x coordinate of the chunk. */
public final int xPosition;
/** The z coordinate of the chunk. */
public final int zPosition;
private boolean isGapLightingUpdated;
/** A Map of ChunkPositions to TileEntities in this chunk */
public Map chunkTileEntityMap;
/**
* Array of Lists containing the entities in this Chunk. Each List represents a 16 block subchunk.
*/
public List[] entityLists;
/** Boolean value indicating if the terrain is populated. */
public boolean isTerrainPopulated;
/**
* Set to true if the chunk has been modified and needs to be updated internally.
*/
public boolean isModified;
/**
* Whether this Chunk has any Entities and thus requires saving on every tick
*/
public boolean hasEntities;
/** The time according to World.worldTime when this chunk was last saved */
public long lastSaveTime;
/**
* 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.
*/
public boolean sendUpdates;
/** Lowest value in the heightmap. */
public int heightMapMinimum;
/**
* Contains the current round-robin relight check index, and is implied as the relight check location as well.
*/
private int queuedLightChecks;
boolean field_76653_p;
public Chunk(World par1World, int par2, int par3)
{
this.storageArrays = new ExtendedBlockStorage[16];
this.blockBiomeArray = new byte[256];
this.precipitationHeightMap = new int[256];
this.updateSkylightColumns = new boolean[256];
this.isGapLightingUpdated = false;
this.chunkTileEntityMap = new HashMap();
this.isTerrainPopulated = false;
this.isModified = false;
this.hasEntities = false;
this.lastSaveTime = 0L;
this.sendUpdates = false;
this.heightMapMinimum = 0;
this.queuedLightChecks = 4096;
this.field_76653_p = false;
this.entityLists = new List[16];
this.worldObj = par1World;
this.xPosition = par2;
this.zPosition = par3;
this.heightMap = new int[256];
for (int k = 0; k < this.entityLists.length; ++k)
{
this.entityLists[k] = new ArrayList();
}
Arrays.fill(this.precipitationHeightMap, -999);
Arrays.fill(this.blockBiomeArray, (byte) - 1);
}
public Chunk(World par1World, byte[] par2ArrayOfByte, int par3, int par4)
{
this(par1World, par3, par4);
int k = par2ArrayOfByte.length / 256;
for (int l = 0; l < 16; ++l)
{
for (int i1 = 0; i1 < 16; ++i1)
{
for (int j1 = 0; j1 < k; ++j1)
{
/* FORGE: The following change, a cast from unsigned byte to int,
* fixes a vanilla bug when generating new chunks that contain a block ID > 127 */
int b0 = par2ArrayOfByte[l << 11 | i1 << 7 | j1] & 0xFF;
if (b0 != 0)
{
int k1 = j1 >> 4;
if (this.storageArrays[k1] == null)
{
this.storageArrays[k1] = new ExtendedBlockStorage(k1 << 4, !par1World.provider.hasNoSky);
}
this.storageArrays[k1].setExtBlockID(l, j1 & 15, i1, b0);
}
}
}
}
}
/**
* Metadata sensitive Chunk constructor for use in new ChunkProviders that
* use metadata sensitive blocks during generation.
*
* @param world The world this chunk belongs to
* @param ids A ByteArray containing all the BlockID's to set this chunk to
* @param metadata A ByteArray containing all the metadata to set this chunk to
* @param chunkX The chunk's X position
* @param chunkZ The Chunk's Z position
*/
public Chunk(World world, byte[] ids, byte[] metadata, int chunkX, int chunkZ)
{
this(world, chunkX, chunkZ);
int k = ids.length / 256;
for (int x = 0; x < 16; ++x)
{
for (int z = 0; z < 16; ++z)
{
for (int y = 0; y < k; ++y)
{
int idx = x << 11 | z << 7 | y;
int id = ids[idx] & 0xFF;
int meta = metadata[idx];
if (id != 0)
{
int l = y >> 4;
if (this.storageArrays[l] == null)
{
this.storageArrays[l] = new ExtendedBlockStorage(l << 4, !world.provider.hasNoSky);
}
this.storageArrays[l].setExtBlockID(x, y & 15, z, id);
this.storageArrays[l].setExtBlockMetadata(x, y & 15, z, meta);
}
}
}
}
}
/**
* A Chunk Constructor which handles shorts to allow block ids > 256 (full 4096 range)
* Meta data sensitive
* NOTE: The x,y,z order of the array is different from the native Chunk constructor to allow for generation > y127
* NOTE: This is possibly more efficient than the standard constructor due to less memory skipping
*
* @param world The world this chunk belongs to
* @param ids A ShortArray containing all the BlockID's to set this chunk to (x is low order, z is mid, y is high)
* @param metadata A ByteArray containing all the metadata to set this chunk to
* @param chunkX The chunk's X position
* @param chunkZ The Chunk's Z position
*/
public Chunk(World world, short[] ids, byte[] metadata, int chunkX, int chunkZ)
{
this(world, chunkX, chunkZ);
int max = ids.length / 256;
for (int y = 0; y < max; ++y)
{
for (int z = 0; z < 16; ++z)
{
for (int x = 0; x < 16; ++x)
{
int idx = y << 8 | z << 4 | x;
int id = ids[idx] & 0xFFFFFF;
int meta = metadata[idx];
if (id != 0) {
int storageBlock = y >> 4;
if (this.storageArrays[storageBlock] == null) {
this.storageArrays[storageBlock] = new ExtendedBlockStorage(storageBlock << 4, !world.provider.hasNoSky);
}
this.storageArrays[storageBlock].setExtBlockID(x, y & 15, z, id);
this.storageArrays[storageBlock].setExtBlockMetadata(x, y & 15, z, meta);
}
}
}
}
}
/**
* Checks whether the chunk is at the X/Z location specified
*/
public boolean isAtLocation(int par1, int par2)
{
return par1 == this.xPosition && par2 == this.zPosition;
}
/**
* Returns the value in the height map at this x, z coordinate in the chunk
*/
public int getHeightValue(int par1, int par2)
{
return this.heightMap[par2 << 4 | par1];
}
/**
* Returns the topmost ExtendedBlockStorage instance for this Chunk that actually contains a block.
*/
public int getTopFilledSegment()
{
for (int i = this.storageArrays.length - 1; i >= 0; --i)
{
if (this.storageArrays[i] != null)
{
return this.storageArrays[i].getYLocation();
}
}
return 0;
}
/**
* Returns the ExtendedBlockStorage array for this Chunk.
*/
public ExtendedBlockStorage[] getBlockStorageArray()
{
return this.storageArrays;
}
@SideOnly(Side.CLIENT)
/**
* Generates the height map for a chunk from scratch
*/
public void generateHeightMap()
{
int i = this.getTopFilledSegment();
for (int j = 0; j < 16; ++j)
{
int k = 0;
while (k < 16)
{
this.precipitationHeightMap[j + (k << 4)] = -999;
int l = i + 16 - 1;
while (true)
{
if (l > 0)
{
int i1 = this.getBlockID(j, l - 1, k);
if (getBlockLightOpacity(j, l - 1, k) == 0)
{
--l;
continue;
}
this.heightMap[k << 4 | j] = l;
}
++k;
break;
}
}
}
this.isModified = true;
}
/**
* Generates the initial skylight map for the chunk upon generation or load.
*/
public void generateSkylightMap()
{
int i = this.getTopFilledSegment();
this.heightMapMinimum = Integer.MAX_VALUE;
int j;
int k;
for (j = 0; j < 16; ++j)
{
k = 0;
while (k < 16)
{
this.precipitationHeightMap[j + (k << 4)] = -999;
int l = i + 16 - 1;
while (true)
{
if (l > 0)
{
if (this.getBlockLightOpacity(j, l - 1, k) == 0)
{
--l;
continue;
}
this.heightMap[k << 4 | j] = l;
if (l < this.heightMapMinimum)
{
this.heightMapMinimum = l;
}
}
if (!this.worldObj.provider.hasNoSky)
{
l = 15;
int i1 = i + 16 - 1;
do
{
l -= this.getBlockLightOpacity(j, i1, k);
if (l > 0)
{
ExtendedBlockStorage extendedblockstorage = this.storageArrays[i1 >> 4];
if (extendedblockstorage != null)
{
extendedblockstorage.setExtSkylightValue(j, i1 & 15, k, l);
this.worldObj.markBlockForRenderUpdate((this.xPosition << 4) + j, i1, (this.zPosition << 4) + k);
}
}
--i1;
}
while (i1 > 0 && l > 0);
}
++k;
break;
}
}
}
this.isModified = true;
for (j = 0; j < 16; ++j)
{
for (k = 0; k < 16; ++k)
{
this.propagateSkylightOcclusion(j, k);
}
}
}
/**
* Propagates a given sky-visible block's light value downward and upward to neighboring blocks as necessary.
*/
private void propagateSkylightOcclusion(int par1, int par2)
{
this.updateSkylightColumns[par1 + par2 * 16] = true;
this.isGapLightingUpdated = true;
}
/**
* Runs delayed skylight updates.
*/
private void updateSkylight_do()
{
this.worldObj.theProfiler.startSection("recheckGaps");
if (this.worldObj.doChunksNearChunkExist(this.xPosition * 16 + 8, 0, this.zPosition * 16 + 8, 16))
{
for (int i = 0; i < 16; ++i)
{
for (int j = 0; j < 16; ++j)
{
if (this.updateSkylightColumns[i + j * 16])
{
this.updateSkylightColumns[i + j * 16] = false;
int k = this.getHeightValue(i, j);
int l = this.xPosition * 16 + i;
int i1 = this.zPosition * 16 + j;
int j1 = this.worldObj.getChunkHeightMapMinimum(l - 1, i1);
int k1 = this.worldObj.getChunkHeightMapMinimum(l + 1, i1);
int l1 = this.worldObj.getChunkHeightMapMinimum(l, i1 - 1);
int i2 = this.worldObj.getChunkHeightMapMinimum(l, i1 + 1);
if (k1 < j1)
{
j1 = k1;
}
if (l1 < j1)
{
j1 = l1;
}
if (i2 < j1)
{
j1 = i2;
}
this.checkSkylightNeighborHeight(l, i1, j1);
this.checkSkylightNeighborHeight(l - 1, i1, k);
this.checkSkylightNeighborHeight(l + 1, i1, k);
this.checkSkylightNeighborHeight(l, i1 - 1, k);
this.checkSkylightNeighborHeight(l, i1 + 1, k);
}
}
}
this.isGapLightingUpdated = false;
}
this.worldObj.theProfiler.endSection();
}
/**
* Checks the height of a block next to a sky-visible block and schedules a lighting update as necessary.
*/
private void checkSkylightNeighborHeight(int par1, int par2, int par3)
{
int l = this.worldObj.getHeightValue(par1, par2);
if (l > par3)
{
this.updateSkylightNeighborHeight(par1, par2, par3, l + 1);
}
else if (l < par3)
{
this.updateSkylightNeighborHeight(par1, par2, l, par3 + 1);
}
}
private void updateSkylightNeighborHeight(int par1, int par2, int par3, int par4)
{
if (par4 > par3 && this.worldObj.doChunksNearChunkExist(par1, 0, par2, 16))
{
for (int i1 = par3; i1 < par4; ++i1)
{
this.worldObj.updateLightByType(EnumSkyBlock.Sky, par1, i1, par2);
}
this.isModified = true;
}
}
/**
* Initiates the recalculation of both the block-light and sky-light for a given block inside a chunk.
*/
private void relightBlock(int par1, int par2, int par3)
{
int l = this.heightMap[par3 << 4 | par1] & 255;
int i1 = l;
if (par2 > l)
{
i1 = par2;
}
while (i1 > 0 && this.getBlockLightOpacity(par1, i1 - 1, par3) == 0)
{
--i1;
}
if (i1 != l)
{
this.worldObj.markBlocksDirtyVertical(par1 + this.xPosition * 16, par3 + this.zPosition * 16, i1, l);
this.heightMap[par3 << 4 | par1] = i1;
int j1 = this.xPosition * 16 + par1;
int k1 = this.zPosition * 16 + par3;
int l1;
int i2;
if (!this.worldObj.provider.hasNoSky)
{
ExtendedBlockStorage extendedblockstorage;
if (i1 < l)
{
for (l1 = i1; l1 < l; ++l1)
{
extendedblockstorage = this.storageArrays[l1 >> 4];
if (extendedblockstorage != null)
{
extendedblockstorage.setExtSkylightValue(par1, l1 & 15, par3, 15);
this.worldObj.markBlockForRenderUpdate((this.xPosition << 4) + par1, l1, (this.zPosition << 4) + par3);
}
}
}
else
{
for (l1 = l; l1 < i1; ++l1)
{
extendedblockstorage = this.storageArrays[l1 >> 4];
if (extendedblockstorage != null)
{
extendedblockstorage.setExtSkylightValue(par1, l1 & 15, par3, 0);
this.worldObj.markBlockForRenderUpdate((this.xPosition << 4) + par1, l1, (this.zPosition << 4) + par3);
}
}
}
l1 = 15;
while (i1 > 0 && l1 > 0)
{
--i1;
i2 = this.getBlockLightOpacity(par1, i1, par3);
if (i2 == 0)
{
i2 = 1;
}
l1 -= i2;
if (l1 < 0)
{
l1 = 0;
}
ExtendedBlockStorage extendedblockstorage1 = this.storageArrays[i1 >> 4];
if (extendedblockstorage1 != null)
{
extendedblockstorage1.setExtSkylightValue(par1, i1 & 15, par3, l1);
}
}
}
l1 = this.heightMap[par3 << 4 | par1];
i2 = l;
int j2 = l1;
if (l1 < l)
{
i2 = l1;
j2 = l;
}
if (l1 < this.heightMapMinimum)
{
this.heightMapMinimum = l1;
}
if (!this.worldObj.provider.hasNoSky)
{
this.updateSkylightNeighborHeight(j1 - 1, k1, i2, j2);
this.updateSkylightNeighborHeight(j1 + 1, k1, i2, j2);
this.updateSkylightNeighborHeight(j1, k1 - 1, i2, j2);
this.updateSkylightNeighborHeight(j1, k1 + 1, i2, j2);
this.updateSkylightNeighborHeight(j1, k1, i2, j2);
}
this.isModified = true;
}
}
public int getBlockLightOpacity(int par1, int par2, int par3)
{
int x = (xPosition << 4) + par1;
int z = (zPosition << 4) + par3;
Block block = Block.blocksList[getBlockID(par1, par2, par3)];
return (block == null ? 0 : block.getLightOpacity(worldObj, x, par2, z));
}
/**
* Return the ID of a block in the chunk.
*/
public int getBlockID(int par1, int par2, int par3)
{
if (par2 >> 4 >= this.storageArrays.length)
{
return 0;
}
else
{
ExtendedBlockStorage extendedblockstorage = this.storageArrays[par2 >> 4];
return extendedblockstorage != null ? extendedblockstorage.getExtBlockID(par1, par2 & 15, par3) : 0;
}
}
/**
* Return the metadata corresponding to the given coordinates inside a chunk.
*/
public int getBlockMetadata(int par1, int par2, int par3)
{
if (par2 >> 4 >= this.storageArrays.length)
{
return 0;
}
else
{
ExtendedBlockStorage extendedblockstorage = this.storageArrays[par2 >> 4];
return extendedblockstorage != null ? extendedblockstorage.getExtBlockMetadata(par1, par2 & 15, par3) : 0;
}
}
/**
* Sets a blockID of a position within a chunk with metadata. Args: x, y, z, blockID, metadata
*/
public boolean setBlockIDWithMetadata(int par1, int par2, int par3, int par4, int par5)
{
int j1 = par3 << 4 | par1;
if (par2 >= this.precipitationHeightMap[j1] - 1)
{
this.precipitationHeightMap[j1] = -999;
}
int k1 = this.heightMap[j1];
int l1 = this.getBlockID(par1, par2, par3);
int i2 = this.getBlockMetadata(par1, par2, par3);
if (l1 == par4 && i2 == par5)
{
return false;
}
else
{
ExtendedBlockStorage extendedblockstorage = this.storageArrays[par2 >> 4];
boolean flag = false;
if (extendedblockstorage == null)
{
if (par4 == 0)
{
return false;
}
extendedblockstorage = this.storageArrays[par2 >> 4] = new ExtendedBlockStorage(par2 >> 4 << 4, !this.worldObj.provider.hasNoSky);
flag = par2 >= k1;
}
int j2 = this.xPosition * 16 + par1;
int k2 = this.zPosition * 16 + par3;
if (l1 != 0 && !this.worldObj.isRemote)
{
Block.blocksList[l1].onSetBlockIDWithMetaData(this.worldObj, j2, par2, k2, i2);
}
extendedblockstorage.setExtBlockID(par1, par2 & 15, par3, par4);
if (l1 != 0)
{
if (!this.worldObj.isRemote)
{
Block.blocksList[l1].breakBlock(this.worldObj, j2, par2, k2, l1, i2);
}
else if (Block.blocksList[l1] != null && Block.blocksList[l1].hasTileEntity(i2))
{
TileEntity te = worldObj.getBlockTileEntity(j2, par2, k2);
if (te != null && te.shouldRefresh(l1, par4, i2, par5, worldObj, j2, par2, k2))
{
this.worldObj.removeBlockTileEntity(j2, par2, k2);
}
}
}
if (extendedblockstorage.getExtBlockID(par1, par2 & 15, par3) != par4)
{
return false;
}
else
{
extendedblockstorage.setExtBlockMetadata(par1, par2 & 15, par3, par5);
if (flag)
{
this.generateSkylightMap();
}
else
{
if (getBlockLightOpacity(par1, par2, par3) > 0)
{
if (par2 >= k1)
{
this.relightBlock(par1, par2 + 1, par3);
}
}
else if (par2 == k1 - 1)
{
this.relightBlock(par1, par2, par3);
}
this.propagateSkylightOcclusion(par1, par3);
}
TileEntity tileentity;
if (par4 != 0)
{
if (!this.worldObj.isRemote)
{
Block.blocksList[par4].onBlockAdded(this.worldObj, j2, par2, k2);
}
if (Block.blocksList[par4] != null && Block.blocksList[par4].hasTileEntity(par5))
{
tileentity = this.getChunkBlockTileEntity(par1, par2, par3);
if (tileentity == null)
{
tileentity = Block.blocksList[par4].createTileEntity(this.worldObj, par5);
this.worldObj.setBlockTileEntity(j2, par2, k2, tileentity);
}
if (tileentity != null)
{
tileentity.updateContainingBlockInfo();
tileentity.blockMetadata = par5;
}
}
}
this.isModified = true;
return true;
}
}
}
/**
* Set the metadata of a block in the chunk
*/
public boolean setBlockMetadata(int par1, int par2, int par3, int par4)
{
ExtendedBlockStorage extendedblockstorage = this.storageArrays[par2 >> 4];
if (extendedblockstorage == null)
{
return false;
}
else
{
int i1 = extendedblockstorage.getExtBlockMetadata(par1, par2 & 15, par3);
if (i1 == par4)
{
return false;
}
else
{
this.isModified = true;
extendedblockstorage.setExtBlockMetadata(par1, par2 & 15, par3, par4);
int j1 = extendedblockstorage.getExtBlockID(par1, par2 & 15, par3);
if (j1 > 0 && Block.blocksList[j1] != null && Block.blocksList[j1].hasTileEntity(par4))
{
TileEntity tileentity = this.getChunkBlockTileEntity(par1, par2, par3);
if (tileentity != null)
{
tileentity.updateContainingBlockInfo();
tileentity.blockMetadata = par4;
}
}
return true;
}
}
}
/**
* Gets the amount of light saved in this block (doesn't adjust for daylight)
*/
public int getSavedLightValue(EnumSkyBlock par1EnumSkyBlock, int par2, int par3, int par4)
{
ExtendedBlockStorage extendedblockstorage = this.storageArrays[par3 >> 4];
return extendedblockstorage == null ? (this.canBlockSeeTheSky(par2, par3, par4) ? par1EnumSkyBlock.defaultLightValue : 0) : (par1EnumSkyBlock == EnumSkyBlock.Sky ? (this.worldObj.provider.hasNoSky ? 0 : extendedblockstorage.getExtSkylightValue(par2, par3 & 15, par4)) : (par1EnumSkyBlock == EnumSkyBlock.Block ? extendedblockstorage.getExtBlocklightValue(par2, par3 & 15, par4) : par1EnumSkyBlock.defaultLightValue));
}
/**
* 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
*/
public void setLightValue(EnumSkyBlock par1EnumSkyBlock, int par2, int par3, int par4, int par5)
{
ExtendedBlockStorage extendedblockstorage = this.storageArrays[par3 >> 4];
if (extendedblockstorage == null)
{
extendedblockstorage = this.storageArrays[par3 >> 4] = new ExtendedBlockStorage(par3 >> 4 << 4, !this.worldObj.provider.hasNoSky);
this.generateSkylightMap();
}
this.isModified = true;
if (par1EnumSkyBlock == EnumSkyBlock.Sky)
{
if (!this.worldObj.provider.hasNoSky)
{
extendedblockstorage.setExtSkylightValue(par2, par3 & 15, par4, par5);
}
}
else if (par1EnumSkyBlock == EnumSkyBlock.Block)
{
extendedblockstorage.setExtBlocklightValue(par2, par3 & 15, par4, par5);
}
}
/**
* Gets the amount of light on a block taking into account sunlight
*/
public int getBlockLightValue(int par1, int par2, int par3, int par4)
{
ExtendedBlockStorage extendedblockstorage = this.storageArrays[par2 >> 4];
if (extendedblockstorage == null)
{
return !this.worldObj.provider.hasNoSky && par4 < EnumSkyBlock.Sky.defaultLightValue ? EnumSkyBlock.Sky.defaultLightValue - par4 : 0;
}
else
{
int i1 = this.worldObj.provider.hasNoSky ? 0 : extendedblockstorage.getExtSkylightValue(par1, par2 & 15, par3);
if (i1 > 0)
{
isLit = true;
}
i1 -= par4;
int j1 = extendedblockstorage.getExtBlocklightValue(par1, par2 & 15, par3);
if (j1 > i1)
{
i1 = j1;
}
return i1;
}
}
/**
* Adds an entity to the chunk. Args: entity
*/
public void addEntity(Entity par1Entity)
{
this.hasEntities = true;
int i = MathHelper.floor_double(par1Entity.posX / 16.0D);
int j = MathHelper.floor_double(par1Entity.posZ / 16.0D);
if (i != this.xPosition || j != this.zPosition)
{
this.worldObj.getWorldLogAgent().logSevere("Wrong location! " + par1Entity);
Thread.dumpStack();
}
int k = MathHelper.floor_double(par1Entity.posY / 16.0D);
if (k < 0)
{
k = 0;
}
if (k >= this.entityLists.length)
{
k = this.entityLists.length - 1;
}
MinecraftForge.EVENT_BUS.post(new EntityEvent.EnteringChunk(par1Entity, this.xPosition, this.zPosition, par1Entity.chunkCoordX, par1Entity.chunkCoordZ));
par1Entity.addedToChunk = true;
par1Entity.chunkCoordX = this.xPosition;
par1Entity.chunkCoordY = k;
par1Entity.chunkCoordZ = this.zPosition;
this.entityLists[k].add(par1Entity);
}
/**
* removes entity using its y chunk coordinate as its index
*/
public void removeEntity(Entity par1Entity)
{
this.removeEntityAtIndex(par1Entity, par1Entity.chunkCoordY);
}
/**
* Removes entity at the specified index from the entity array.
*/
public void removeEntityAtIndex(Entity par1Entity, int par2)
{
if (par2 < 0)
{
par2 = 0;
}
if (par2 >= this.entityLists.length)
{
par2 = this.entityLists.length - 1;
}
this.entityLists[par2].remove(par1Entity);
}
/**
* Returns whether is not a block above this one blocking sight to the sky (done via checking against the heightmap)
*/
public boolean canBlockSeeTheSky(int par1, int par2, int par3)
{
return par2 >= this.heightMap[par3 << 4 | par1];
}
/**
* Gets the TileEntity for a given block in this chunk
*/
public TileEntity getChunkBlockTileEntity(int par1, int par2, int par3)
{
ChunkPosition chunkposition = new ChunkPosition(par1, par2, par3);
TileEntity tileentity = (TileEntity)this.chunkTileEntityMap.get(chunkposition);
if (tileentity != null && tileentity.isInvalid())
{
chunkTileEntityMap.remove(chunkposition);
tileentity = null;
}
if (tileentity == null)
{
int l = this.getBlockID(par1, par2, par3);
int meta = this.getBlockMetadata(par1, par2, par3);
if (l <= 0 || !Block.blocksList[l].hasTileEntity(meta))
{
return null;
}
if (tileentity == null)
{
tileentity = Block.blocksList[l].createTileEntity(this.worldObj, meta);
this.worldObj.setBlockTileEntity(this.xPosition * 16 + par1, par2, this.zPosition * 16 + par3, tileentity);
}
tileentity = (TileEntity)this.chunkTileEntityMap.get(chunkposition);
}
return tileentity;
}
/**
* Adds a TileEntity to a chunk
*/
public void addTileEntity(TileEntity par1TileEntity)
{
int i = par1TileEntity.xCoord - this.xPosition * 16;
int j = par1TileEntity.yCoord;
int k = par1TileEntity.zCoord - this.zPosition * 16;
this.setChunkBlockTileEntity(i, j, k, par1TileEntity);
if (this.isChunkLoaded)
{
this.worldObj.addTileEntity(par1TileEntity);
}
}
/**
* Sets the TileEntity for a given block in this chunk
*/
public void setChunkBlockTileEntity(int par1, int par2, int par3, TileEntity par4TileEntity)
{
ChunkPosition chunkposition = new ChunkPosition(par1, par2, par3);
par4TileEntity.setWorldObj(this.worldObj);
par4TileEntity.xCoord = this.xPosition * 16 + par1;
par4TileEntity.yCoord = par2;
par4TileEntity.zCoord = this.zPosition * 16 + par3;
Block block = Block.blocksList[getBlockID(par1, par2, par3)];
if (block != null && block.hasTileEntity(getBlockMetadata(par1, par2, par3)))
{
if (this.chunkTileEntityMap.containsKey(chunkposition))
{
((TileEntity)this.chunkTileEntityMap.get(chunkposition)).invalidate();
}
par4TileEntity.validate();
this.chunkTileEntityMap.put(chunkposition, par4TileEntity);
}
}
/**
* Removes the TileEntity for a given block in this chunk
*/
public void removeChunkBlockTileEntity(int par1, int par2, int par3)
{
ChunkPosition chunkposition = new ChunkPosition(par1, par2, par3);
if (this.isChunkLoaded)
{
TileEntity tileentity = (TileEntity)this.chunkTileEntityMap.remove(chunkposition);
if (tileentity != null)
{
tileentity.invalidate();
}
}
}
/**
* Called when this Chunk is loaded by the ChunkProvider
*/
public void onChunkLoad()
{
this.isChunkLoaded = true;
this.worldObj.addTileEntity(this.chunkTileEntityMap.values());
for (int i = 0; i < this.entityLists.length; ++i)
{
this.worldObj.addLoadedEntities(this.entityLists[i]);
}
MinecraftForge.EVENT_BUS.post(new ChunkEvent.Load(this));
}
/**
* Called when this Chunk is unloaded by the ChunkProvider
*/
public void onChunkUnload()
{
this.isChunkLoaded = false;
Iterator iterator = this.chunkTileEntityMap.values().iterator();
while (iterator.hasNext())
{
TileEntity tileentity = (TileEntity)iterator.next();
this.worldObj.markTileEntityForDespawn(tileentity);
}
for (int i = 0; i < this.entityLists.length; ++i)
{
this.worldObj.unloadEntities(this.entityLists[i]);
}
MinecraftForge.EVENT_BUS.post(new ChunkEvent.Unload(this));
}
/**
* Sets the isModified flag for this Chunk
*/
public void setChunkModified()
{
this.isModified = true;
}
/**
* Fills the given list of all entities that intersect within the given bounding box that aren't the passed entity
* Args: entity, aabb, listToFill
*/
public void getEntitiesWithinAABBForEntity(Entity par1Entity, AxisAlignedBB par2AxisAlignedBB, List par3List, IEntitySelector par4IEntitySelector)
{
int i = MathHelper.floor_double((par2AxisAlignedBB.minY - World.MAX_ENTITY_RADIUS) / 16.0D);
int j = MathHelper.floor_double((par2AxisAlignedBB.maxY + World.MAX_ENTITY_RADIUS) / 16.0D);
if (i < 0)
{
i = 0;
j = Math.max(i, j);
}
if (j >= this.entityLists.length)
{
j = this.entityLists.length - 1;
i = Math.min(i, j);
}
for (int k = i; k <= j; ++k)
{
List list1 = this.entityLists[k];
for (int l = 0; l < list1.size(); ++l)
{
Entity entity1 = (Entity)list1.get(l);
if (entity1 != par1Entity && entity1.boundingBox.intersectsWith(par2AxisAlignedBB) && (par4IEntitySelector == null || par4IEntitySelector.isEntityApplicable(entity1)))
{
par3List.add(entity1);
Entity[] aentity = entity1.getParts();
if (aentity != null)
{
for (int i1 = 0; i1 < aentity.length; ++i1)
{
entity1 = aentity[i1];
if (entity1 != par1Entity && entity1.boundingBox.intersectsWith(par2AxisAlignedBB) && (par4IEntitySelector == null || par4IEntitySelector.isEntityApplicable(entity1)))
{
par3List.add(entity1);
}
}
}
}
}
}
}
/**
* Gets all entities that can be assigned to the specified class. Args: entityClass, aabb, listToFill
*/
public void getEntitiesOfTypeWithinAAAB(Class par1Class, AxisAlignedBB par2AxisAlignedBB, List par3List, IEntitySelector par4IEntitySelector)
{
int i = MathHelper.floor_double((par2AxisAlignedBB.minY - World.MAX_ENTITY_RADIUS) / 16.0D);
int j = MathHelper.floor_double((par2AxisAlignedBB.maxY + World.MAX_ENTITY_RADIUS) / 16.0D);
if (i < 0)
{
i = 0;
}
else if (i >= this.entityLists.length)
{
i = this.entityLists.length - 1;
}
if (j >= this.entityLists.length)
{
j = this.entityLists.length - 1;
}
else if (j < 0)
{
j = 0;
}
for (int k = i; k <= j; ++k)
{
List list1 = this.entityLists[k];
for (int l = 0; l < list1.size(); ++l)
{
Entity entity = (Entity)list1.get(l);
if (par1Class.isAssignableFrom(entity.getClass()) && entity.boundingBox.intersectsWith(par2AxisAlignedBB) && (par4IEntitySelector == null || par4IEntitySelector.isEntityApplicable(entity)))
{
par3List.add(entity);
}
}
}
}
/**
* Returns true if this Chunk needs to be saved
*/
public boolean needsSaving(boolean par1)
{
if (par1)
{
if (this.hasEntities && this.worldObj.getTotalWorldTime() != this.lastSaveTime || this.isModified)
{
return true;
}
}
else if (this.hasEntities && this.worldObj.getTotalWorldTime() >= this.lastSaveTime + 600L)
{
return true;
}
return this.isModified;
}
public Random getRandomWithSeed(long par1)
{
return new Random(this.worldObj.getSeed() + (long)(this.xPosition * this.xPosition * 4987142) + (long)(this.xPosition * 5947611) + (long)(this.zPosition * this.zPosition) * 4392871L + (long)(this.zPosition * 389711) ^ par1);
}
public boolean isEmpty()
{
return false;
}
public void populateChunk(IChunkProvider par1IChunkProvider, IChunkProvider par2IChunkProvider, int par3, int par4)
{
if (!this.isTerrainPopulated && par1IChunkProvider.chunkExists(par3 + 1, par4 + 1) && par1IChunkProvider.chunkExists(par3, par4 + 1) && par1IChunkProvider.chunkExists(par3 + 1, par4))
{
par1IChunkProvider.populate(par2IChunkProvider, par3, par4);
}
if (par1IChunkProvider.chunkExists(par3 - 1, par4) && !par1IChunkProvider.provideChunk(par3 - 1, par4).isTerrainPopulated && par1IChunkProvider.chunkExists(par3 - 1, par4 + 1) && par1IChunkProvider.chunkExists(par3, par4 + 1) && par1IChunkProvider.chunkExists(par3 - 1, par4 + 1))
{
par1IChunkProvider.populate(par2IChunkProvider, par3 - 1, par4);
}
if (par1IChunkProvider.chunkExists(par3, par4 - 1) && !par1IChunkProvider.provideChunk(par3, par4 - 1).isTerrainPopulated && par1IChunkProvider.chunkExists(par3 + 1, par4 - 1) && par1IChunkProvider.chunkExists(par3 + 1, par4 - 1) && par1IChunkProvider.chunkExists(par3 + 1, par4))
{
par1IChunkProvider.populate(par2IChunkProvider, par3, par4 - 1);
}
if (par1IChunkProvider.chunkExists(par3 - 1, par4 - 1) && !par1IChunkProvider.provideChunk(par3 - 1, par4 - 1).isTerrainPopulated && par1IChunkProvider.chunkExists(par3, par4 - 1) && par1IChunkProvider.chunkExists(par3 - 1, par4))
{
par1IChunkProvider.populate(par2IChunkProvider, par3 - 1, par4 - 1);
}
}
/**
* Gets the height to which rain/snow will fall. Calculates it if not already stored.
*/
public int getPrecipitationHeight(int par1, int par2)
{
int k = par1 | par2 << 4;
int l = this.precipitationHeightMap[k];
if (l == -999)
{
int i1 = this.getTopFilledSegment() + 15;
l = -1;
while (i1 > 0 && l == -1)
{
int j1 = this.getBlockID(par1, i1, par2);
Material material = j1 == 0 ? Material.air : Block.blocksList[j1].blockMaterial;
if (!material.blocksMovement() && !material.isLiquid())
{
--i1;
}
else
{
l = i1 + 1;
}
}
this.precipitationHeightMap[k] = l;
}
return l;
}
/**
* Checks whether skylight needs updated; if it does, calls updateSkylight_do
*/
public void updateSkylight()
{
if (this.isGapLightingUpdated && !this.worldObj.provider.hasNoSky)
{
this.updateSkylight_do();
}
}
/**
* Gets a ChunkCoordIntPair representing the Chunk's position.
*/
public ChunkCoordIntPair getChunkCoordIntPair()
{
return new ChunkCoordIntPair(this.xPosition, this.zPosition);
}
/**
* Returns whether the ExtendedBlockStorages containing levels (in blocks) from arg 1 to arg 2 are fully empty
* (true) or not (false).
*/
public boolean getAreLevelsEmpty(int par1, int par2)
{
if (par1 < 0)
{
par1 = 0;
}
if (par2 >= 256)
{
par2 = 255;
}
for (int k = par1; k <= par2; k += 16)
{
ExtendedBlockStorage extendedblockstorage = this.storageArrays[k >> 4];
if (extendedblockstorage != null && !extendedblockstorage.isEmpty())
{
return false;
}
}
return true;
}
public void setStorageArrays(ExtendedBlockStorage[] par1ArrayOfExtendedBlockStorage)
{
this.storageArrays = par1ArrayOfExtendedBlockStorage;
}
@SideOnly(Side.CLIENT)
/**
* Initialise this chunk with new binary data
*/
public void fillChunk(byte[] par1ArrayOfByte, int par2, int par3, boolean par4)
{
Iterator iterator = chunkTileEntityMap.values().iterator();
while(iterator.hasNext())
{
TileEntity tileEntity = (TileEntity)iterator.next();
tileEntity.updateContainingBlockInfo();
tileEntity.getBlockMetadata();
tileEntity.getBlockType();
}
int k = 0;
boolean flag1 = !this.worldObj.provider.hasNoSky;
int l;
for (l = 0; l < this.storageArrays.length; ++l)
{
if ((par2 & 1 << l) != 0)
{
if (this.storageArrays[l] == null)
{
this.storageArrays[l] = new ExtendedBlockStorage(l << 4, flag1);
}
byte[] abyte1 = this.storageArrays[l].getBlockLSBArray();
System.arraycopy(par1ArrayOfByte, k, abyte1, 0, abyte1.length);
k += abyte1.length;
}
else if (par4 && this.storageArrays[l] != null)
{
this.storageArrays[l] = null;
}
}
NibbleArray nibblearray;
for (l = 0; l < this.storageArrays.length; ++l)
{
if ((par2 & 1 << l) != 0 && this.storageArrays[l] != null)
{
nibblearray = this.storageArrays[l].getMetadataArray();
System.arraycopy(par1ArrayOfByte, k, nibblearray.data, 0, nibblearray.data.length);
k += nibblearray.data.length;
}
}
for (l = 0; l < this.storageArrays.length; ++l)
{
if ((par2 & 1 << l) != 0 && this.storageArrays[l] != null)
{
nibblearray = this.storageArrays[l].getBlocklightArray();
System.arraycopy(par1ArrayOfByte, k, nibblearray.data, 0, nibblearray.data.length);
k += nibblearray.data.length;
}
}
if (flag1)
{
for (l = 0; l < this.storageArrays.length; ++l)
{
if ((par2 & 1 << l) != 0 && this.storageArrays[l] != null)
{
nibblearray = this.storageArrays[l].getSkylightArray();
System.arraycopy(par1ArrayOfByte, k, nibblearray.data, 0, nibblearray.data.length);
k += nibblearray.data.length;
}
}
}
for (l = 0; l < this.storageArrays.length; ++l)
{
if ((par3 & 1 << l) != 0)
{
if (this.storageArrays[l] == null)
{
k += 2048;
}
else
{
nibblearray = this.storageArrays[l].getBlockMSBArray();
if (nibblearray == null)
{
nibblearray = this.storageArrays[l].createBlockMSBArray();
}
System.arraycopy(par1ArrayOfByte, k, nibblearray.data, 0, nibblearray.data.length);
k += nibblearray.data.length;
}
}
else if (par4 && this.storageArrays[l] != null && this.storageArrays[l].getBlockMSBArray() != null)
{
this.storageArrays[l].clearMSBArray();
}
}
if (par4)
{
System.arraycopy(par1ArrayOfByte, k, this.blockBiomeArray, 0, this.blockBiomeArray.length);
int i1 = k + this.blockBiomeArray.length;
}
for (l = 0; l < this.storageArrays.length; ++l)
{
if (this.storageArrays[l] != null && (par2 & 1 << l) != 0)
{
this.storageArrays[l].removeInvalidBlocks();
}
}
this.generateHeightMap();
List<TileEntity> invalidList = new ArrayList<TileEntity>();
iterator = chunkTileEntityMap.values().iterator();
while (iterator.hasNext())
{
TileEntity tileEntity = (TileEntity)iterator.next();
int x = tileEntity.xCoord & 15;
int y = tileEntity.yCoord;
int z = tileEntity.zCoord & 15;
Block block = tileEntity.getBlockType();
if (block == null || block.blockID != getBlockID(x, y, z) || tileEntity.getBlockMetadata() != getBlockMetadata(x, y, z))
{
invalidList.add(tileEntity);
}
tileEntity.updateContainingBlockInfo();
}
for (TileEntity tileEntity : invalidList)
{
tileEntity.invalidate();
}
}
/**
* This method retrieves the biome at a set of coordinates
*/
public BiomeGenBase getBiomeGenForWorldCoords(int par1, int par2, WorldChunkManager par3WorldChunkManager)
{
int k = this.blockBiomeArray[par2 << 4 | par1] & 255;
if (k == 255)
{
BiomeGenBase biomegenbase = par3WorldChunkManager.getBiomeGenAt((this.xPosition << 4) + par1, (this.zPosition << 4) + par2);
k = biomegenbase.biomeID;
this.blockBiomeArray[par2 << 4 | par1] = (byte)(k & 255);
}
return BiomeGenBase.biomeList[k] == null ? BiomeGenBase.plains : BiomeGenBase.biomeList[k];
}
/**
* Returns an array containing a 16x16 mapping on the X/Z of block positions in this Chunk to biome IDs.
*/
public byte[] getBiomeArray()
{
return this.blockBiomeArray;
}
/**
* Accepts a 256-entry array that contains a 16x16 mapping on the X/Z plane of block positions in this Chunk to
* biome IDs.
*/
public void setBiomeArray(byte[] par1ArrayOfByte)
{
this.blockBiomeArray = par1ArrayOfByte;
}
/**
* Resets the relight check index to 0 for this Chunk.
*/
public void resetRelightChecks()
{
this.queuedLightChecks = 0;
}
/**
* 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
*/
public void enqueueRelightChecks()
{
for (int i = 0; i < 8; ++i)
{
if (this.queuedLightChecks >= 4096)
{
return;
}
int j = this.queuedLightChecks % 16;
int k = this.queuedLightChecks / 16 % 16;
int l = this.queuedLightChecks / 256;
++this.queuedLightChecks;
int i1 = (this.xPosition << 4) + k;
int j1 = (this.zPosition << 4) + l;
for (int k1 = 0; k1 < 16; ++k1)
{
int l1 = (j << 4) + k1;
if (this.storageArrays[j] == null && (k1 == 0 || k1 == 15 || k == 0 || k == 15 || l == 0 || l == 15) || this.storageArrays[j] != null && this.storageArrays[j].getExtBlockID(k, k1, l) == 0)
{
if (Block.lightValue[this.worldObj.getBlockId(i1, l1 - 1, j1)] > 0)
{
this.worldObj.updateAllLightTypes(i1, l1 - 1, j1);
}
if (Block.lightValue[this.worldObj.getBlockId(i1, l1 + 1, j1)] > 0)
{
this.worldObj.updateAllLightTypes(i1, l1 + 1, j1);
}
if (Block.lightValue[this.worldObj.getBlockId(i1 - 1, l1, j1)] > 0)
{
this.worldObj.updateAllLightTypes(i1 - 1, l1, j1);
}
if (Block.lightValue[this.worldObj.getBlockId(i1 + 1, l1, j1)] > 0)
{
this.worldObj.updateAllLightTypes(i1 + 1, l1, j1);
}
if (Block.lightValue[this.worldObj.getBlockId(i1, l1, j1 - 1)] > 0)
{
this.worldObj.updateAllLightTypes(i1, l1, j1 - 1);
}
if (Block.lightValue[this.worldObj.getBlockId(i1, l1, j1 + 1)] > 0)
{
this.worldObj.updateAllLightTypes(i1, l1, j1 + 1);
}
this.worldObj.updateAllLightTypes(i1, l1, j1);
}
}
}
}
/** FORGE: Used to remove only invalid TileEntities */
public void cleanChunkBlockTileEntity(int x, int y, int z)
{
ChunkPosition position = new ChunkPosition(x, y, z);
if (isChunkLoaded)
{
TileEntity entity = (TileEntity)chunkTileEntityMap.get(position);
if (entity != null && entity.isInvalid())
{
chunkTileEntityMap.remove(position);
}
}
}
}