/** Gets the amount of light on a block taking into account sunlight */
public int getBlockLightValue(int par1, int par2, int par3, int par4) {
ExtendedBlockStorage var5 = this.storageArrays[par2 >> 4];
if (var5 == null) {
return !this.worldObj.provider.hasNoSky && par4 < EnumSkyBlock.Sky.defaultLightValue
? EnumSkyBlock.Sky.defaultLightValue - par4
: 0;
} else {
int var6 =
this.worldObj.provider.hasNoSky ? 0 : var5.getExtSkylightValue(par1, par2 & 15, par3);
if (var6 > 0) {
isLit = true;
}
var6 -= par4;
int var7 = var5.getExtBlocklightValue(par1, par2 & 15, par3);
if (var7 > var6) {
var6 = var7;
}
return var6;
}
}
/** Set the metadata of a block in the chunk */
public boolean setBlockMetadata(int par1, int par2, int par3, int par4) {
ExtendedBlockStorage var5 = this.storageArrays[par2 >> 4];
if (var5 == null) {
return false;
} else {
int var6 = var5.getExtBlockMetadata(par1, par2 & 15, par3);
if (var6 == par4) {
return false;
} else {
this.isModified = true;
var5.setExtBlockMetadata(par1, par2 & 15, par3, par4);
int var7 = var5.getExtBlockID(par1, par2 & 15, par3);
if (var7 > 0 && Block.blocksList[var7] instanceof ITileEntityProvider) {
TileEntity var8 = this.getChunkBlockTileEntity(par1, par2, par3);
if (var8 != null) {
var8.updateContainingBlockInfo();
var8.blockMetadata = par4;
}
}
return true;
}
}
}
/** 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 var4 = this.storageArrays[par2 >> 4];
return var4 != null ? var4.getExtBlockMetadata(par1, par2 & 15, par3) : 0;
}
}
/** 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 var5 = this.storageArrays[par3 >> 4];
return var5 == null
? (this.canBlockSeeTheSky(par2, par3, par4) ? par1EnumSkyBlock.defaultLightValue : 0)
: (par1EnumSkyBlock == EnumSkyBlock.Sky
? (this.worldObj.provider.hasNoSky
? 0
: var5.getExtSkylightValue(par2, par3 & 15, par4))
: (par1EnumSkyBlock == EnumSkyBlock.Block
? var5.getExtBlocklightValue(par2, par3 & 15, par4)
: par1EnumSkyBlock.defaultLightValue));
}
/**
* 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 var3 = par1; var3 <= par2; var3 += 16) {
ExtendedBlockStorage var4 = this.storageArrays[var3 >> 4];
if (var4 != null && !var4.isEmpty()) {
return false;
}
}
return true;
}
/**
* 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 var6 = this.storageArrays[par3 >> 4];
if (var6 == null) {
var6 =
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) {
var6.setExtSkylightValue(par2, par3 & 15, par4, par5);
}
} else if (par1EnumSkyBlock == EnumSkyBlock.Block) {
var6.setExtBlocklightValue(par2, par3 & 15, par4, par5);
}
}
/**
* Will return back a chunk, if it doesn't exist and its not a MP client it will generates all the
* blocks for the specified chunk from the map seed and chunk seed
*/
public Chunk provideChunk(int par1, int par2) {
Chunk var3 = new Chunk(this.worldObj, par1, par2);
for (int var4 = 0; var4 < this.field_82700_c.length; ++var4) {
int var5 = var4 >> 4;
ExtendedBlockStorage var6 = var3.getBlockStorageArray()[var5];
if (var6 == null) {
var6 = new ExtendedBlockStorage(var4, !this.worldObj.provider.hasNoSky);
var3.getBlockStorageArray()[var5] = var6;
}
for (int var7 = 0; var7 < 16; ++var7) {
for (int var8 = 0; var8 < 16; ++var8) {
var6.setExtBlockID(var7, var4 & 15, var8, this.field_82700_c[var4] & 255);
var6.setExtBlockMetadata(var7, var4 & 15, var8, this.field_82698_d[var4]);
}
}
}
var3.generateSkylightMap();
BiomeGenBase[] var9 =
this.worldObj
.getWorldChunkManager()
.loadBlockGeneratorData((BiomeGenBase[]) null, par1 * 16, par2 * 16, 16, 16);
byte[] var10 = var3.getBiomeArray();
for (int var11 = 0; var11 < var10.length; ++var11) {
var10[var11] = (byte) var9[var11].biomeID;
}
Iterator var12 = this.structureGenerators.iterator();
while (var12.hasNext()) {
MapGenStructure var13 = (MapGenStructure) var12.next();
var13.generate(this, this.worldObj, par1, par2, (byte[]) null);
}
var3.generateSkylightMap();
return var3;
}
/** 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 var6 = par3 << 4 | par1;
if (par2 >= this.precipitationHeightMap[var6] - 1) {
this.precipitationHeightMap[var6] = -999;
}
int var7 = this.heightMap[var6];
int var8 = this.getBlockID(par1, par2, par3);
int var9 = this.getBlockMetadata(par1, par2, par3);
if (var8 == par4 && var9 == par5) {
return false;
} else {
ExtendedBlockStorage var10 = this.storageArrays[par2 >> 4];
boolean var11 = false;
if (var10 == null) {
if (par4 == 0) {
return false;
}
var10 =
this.storageArrays[par2 >> 4] =
new ExtendedBlockStorage(par2 >> 4 << 4, !this.worldObj.provider.hasNoSky);
var11 = par2 >= var7;
}
int var12 = this.xPosition * 16 + par1;
int var13 = this.zPosition * 16 + par3;
if (var8 != 0 && !this.worldObj.isRemote) {
Block.blocksList[var8].onSetBlockIDWithMetaData(this.worldObj, var12, par2, var13, var9);
}
var10.setExtBlockID(par1, par2 & 15, par3, par4);
if (var8 != 0) {
if (!this.worldObj.isRemote) {
Block.blocksList[var8].breakBlock(this.worldObj, var12, par2, var13, var8, var9);
} else if (Block.blocksList[var8] instanceof ITileEntityProvider && var8 != par4) {
this.worldObj.removeBlockTileEntity(var12, par2, var13);
}
}
if (var10.getExtBlockID(par1, par2 & 15, par3) != par4) {
return false;
} else {
var10.setExtBlockMetadata(par1, par2 & 15, par3, par5);
if (var11) {
this.generateSkylightMap();
} else {
if (Block.lightOpacity[par4 & 4095] > 0) {
if (par2 >= var7) {
this.relightBlock(par1, par2 + 1, par3);
}
} else if (par2 == var7 - 1) {
this.relightBlock(par1, par2, par3);
}
this.propagateSkylightOcclusion(par1, par3);
}
TileEntity var14;
if (par4 != 0) {
if (!this.worldObj.isRemote) {
Block.blocksList[par4].onBlockAdded(this.worldObj, var12, par2, var13);
}
if (Block.blocksList[par4] instanceof ITileEntityProvider) {
var14 = this.getChunkBlockTileEntity(par1, par2, par3);
if (var14 == null) {
var14 =
((ITileEntityProvider) Block.blocksList[par4]).createNewTileEntity(this.worldObj);
this.worldObj.setBlockTileEntity(var12, par2, var13, var14);
}
if (var14 != null) {
var14.updateContainingBlockInfo();
}
}
} else if (var8 > 0 && Block.blocksList[var8] instanceof ITileEntityProvider) {
var14 = this.getChunkBlockTileEntity(par1, par2, par3);
if (var14 != null) {
var14.updateContainingBlockInfo();
}
}
this.isModified = true;
return 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 var4 = this.heightMap[par3 << 4 | par1] & 255;
int var5 = var4;
if (par2 > var4) {
var5 = par2;
}
while (var5 > 0 && this.getBlockLightOpacity(par1, var5 - 1, par3) == 0) {
--var5;
}
if (var5 != var4) {
this.worldObj.markBlocksDirtyVertical(
par1 + this.xPosition * 16, par3 + this.zPosition * 16, var5, var4);
this.heightMap[par3 << 4 | par1] = var5;
int var6 = this.xPosition * 16 + par1;
int var7 = this.zPosition * 16 + par3;
int var8;
int var12;
if (!this.worldObj.provider.hasNoSky) {
ExtendedBlockStorage var9;
if (var5 < var4) {
for (var8 = var5; var8 < var4; ++var8) {
var9 = this.storageArrays[var8 >> 4];
if (var9 != null) {
var9.setExtSkylightValue(par1, var8 & 15, par3, 15);
this.worldObj.markBlockForRenderUpdate(
(this.xPosition << 4) + par1, var8, (this.zPosition << 4) + par3);
}
}
} else {
for (var8 = var4; var8 < var5; ++var8) {
var9 = this.storageArrays[var8 >> 4];
if (var9 != null) {
var9.setExtSkylightValue(par1, var8 & 15, par3, 0);
this.worldObj.markBlockForRenderUpdate(
(this.xPosition << 4) + par1, var8, (this.zPosition << 4) + par3);
}
}
}
var8 = 15;
while (var5 > 0 && var8 > 0) {
--var5;
var12 = this.getBlockLightOpacity(par1, var5, par3);
if (var12 == 0) {
var12 = 1;
}
var8 -= var12;
if (var8 < 0) {
var8 = 0;
}
ExtendedBlockStorage var10 = this.storageArrays[var5 >> 4];
if (var10 != null) {
var10.setExtSkylightValue(par1, var5 & 15, par3, var8);
}
}
}
var8 = this.heightMap[par3 << 4 | par1];
var12 = var4;
int var13 = var8;
if (var8 < var4) {
var12 = var8;
var13 = var4;
}
if (var8 < this.field_82912_p) {
this.field_82912_p = var8;
}
if (!this.worldObj.provider.hasNoSky) {
this.updateSkylightNeighborHeight(var6 - 1, var7, var12, var13);
this.updateSkylightNeighborHeight(var6 + 1, var7, var12, var13);
this.updateSkylightNeighborHeight(var6, var7 - 1, var12, var13);
this.updateSkylightNeighborHeight(var6, var7 + 1, var12, var13);
this.updateSkylightNeighborHeight(var6, var7, var12, var13);
}
this.isModified = true;
}
}
/** Generates the initial skylight map for the chunk upon generation or load. */
public void generateSkylightMap() {
int var1 = this.getTopFilledSegment();
this.field_82912_p = Integer.MAX_VALUE;
int var2;
int var3;
for (var2 = 0; var2 < 16; ++var2) {
var3 = 0;
while (var3 < 16) {
this.precipitationHeightMap[var2 + (var3 << 4)] = -999;
int var4 = var1 + 16 - 1;
while (true) {
if (var4 > 0) {
if (this.getBlockLightOpacity(var2, var4 - 1, var3) == 0) {
--var4;
continue;
}
this.heightMap[var3 << 4 | var2] = var4;
if (var4 < this.field_82912_p) {
this.field_82912_p = var4;
}
}
if (!this.worldObj.provider.hasNoSky) {
var4 = 15;
int var5 = var1 + 16 - 1;
do {
var4 -= this.getBlockLightOpacity(var2, var5, var3);
if (var4 > 0) {
ExtendedBlockStorage var6 = this.storageArrays[var5 >> 4];
if (var6 != null) {
var6.setExtSkylightValue(var2, var5 & 15, var3, var4);
this.worldObj.markBlockForRenderUpdate(
(this.xPosition << 4) + var2, var5, (this.zPosition << 4) + var3);
}
}
--var5;
} while (var5 > 0 && var4 > 0);
}
++var3;
break;
}
}
}
this.isModified = true;
for (var2 = 0; var2 < 16; ++var2) {
for (var3 = 0; var3 < 16; ++var3) {
this.propagateSkylightOcclusion(var2, var3);
}
}
}
/**
* plays random cave ambient sounds and runs updateTick on random blocks within each chunk in the
* vacinity of a player
*/
protected void tickBlocksAndAmbiance() {
super.tickBlocksAndAmbiance();
int var1 = 0;
int var2 = 0;
Iterator var3 = this.activeChunkSet.iterator();
while (var3.hasNext()) {
ChunkCoordIntPair var4 = (ChunkCoordIntPair) var3.next();
int var5 = var4.chunkXPos * 16;
int var6 = var4.chunkZPos * 16;
this.theProfiler.startSection("getChunk");
Chunk var7 = this.getChunkFromChunkCoords(var4.chunkXPos, var4.chunkZPos);
this.moodSoundAndLightCheck(var5, var6, var7);
this.theProfiler.endStartSection("tickChunk");
var7.updateSkylight();
this.theProfiler.endStartSection("thunder");
int var8;
int var9;
int var10;
int var11;
if (this.rand.nextInt(100000) == 0 && this.isRaining() && this.isThundering()) {
this.updateLCG = this.updateLCG * 3 + 1013904223;
var8 = this.updateLCG >> 2;
var9 = var5 + (var8 & 15);
var10 = var6 + (var8 >> 8 & 15);
var11 = this.getPrecipitationHeight(var9, var10);
if (this.canLightningStrikeAt(var9, var11, var10)) {
this.addWeatherEffect(
new EntityLightningBolt(this, (double) var9, (double) var11, (double) var10));
}
}
this.theProfiler.endStartSection("iceandsnow");
int var13;
if (this.rand.nextInt(16) == 0) {
this.updateLCG = this.updateLCG * 3 + 1013904223;
var8 = this.updateLCG >> 2;
var9 = var8 & 15;
var10 = var8 >> 8 & 15;
var11 = this.getPrecipitationHeight(var9 + var5, var10 + var6);
if (this.isBlockFreezableNaturally(var9 + var5, var11 - 1, var10 + var6)) {
this.setBlock(var9 + var5, var11 - 1, var10 + var6, Block.ice.blockID);
}
if (this.isRaining() && this.canSnowAt(var9 + var5, var11, var10 + var6)) {
this.setBlock(var9 + var5, var11, var10 + var6, Block.snow.blockID);
}
if (this.isRaining()) {
BiomeGenBase var12 = this.getBiomeGenForCoords(var9 + var5, var10 + var6);
if (var12.canSpawnLightningBolt()) {
var13 = this.getBlockId(var9 + var5, var11 - 1, var10 + var6);
if (var13 != 0) {
Block.blocksList[var13].fillWithRain(this, var9 + var5, var11 - 1, var10 + var6);
}
}
}
}
this.theProfiler.endStartSection("tickTiles");
ExtendedBlockStorage[] var19 = var7.getBlockStorageArray();
var9 = var19.length;
for (var10 = 0; var10 < var9; ++var10) {
ExtendedBlockStorage var21 = var19[var10];
if (var21 != null && var21.getNeedsRandomTick()) {
for (int var20 = 0; var20 < 3; ++var20) {
this.updateLCG = this.updateLCG * 3 + 1013904223;
var13 = this.updateLCG >> 2;
int var14 = var13 & 15;
int var15 = var13 >> 8 & 15;
int var16 = var13 >> 16 & 15;
int var17 = var21.getExtBlockID(var14, var16, var15);
++var2;
Block var18 = Block.blocksList[var17];
if (var18 != null && var18.getTickRandomly()) {
++var1;
var18.updateTick(
this, var14 + var5, var16 + var21.getYLocation(), var15 + var6, this.rand);
}
}
}
}
this.theProfiler.endSection();
}
}
