package net.minecraft.world.gen;
import java.util.List;
import java.util.Random;
import net.minecraft.block.Block;
import net.minecraft.block.BlockFalling;
import net.minecraft.block.material.Material;
import net.minecraft.entity.EnumCreatureType;
import net.minecraft.init.Blocks;
import net.minecraft.util.IProgressUpdate;
import net.minecraft.util.MathHelper;
import net.minecraft.world.ChunkPosition;
import net.minecraft.world.World;
import net.minecraft.world.biome.BiomeGenBase;
import net.minecraft.world.chunk.Chunk;
import net.minecraft.world.chunk.IChunkProvider;
import net.minecraftforge.common.*;
import cpw.mods.fml.common.eventhandler.Event.*;
import net.minecraftforge.event.terraingen.*;
public class ChunkProviderEnd implements IChunkProvider
{
private Random endRNG;
private NoiseGeneratorOctaves noiseGen1;
private NoiseGeneratorOctaves noiseGen2;
private NoiseGeneratorOctaves noiseGen3;
public NoiseGeneratorOctaves noiseGen4;
public NoiseGeneratorOctaves noiseGen5;
private World endWorld;
private double[] densities;
/** The biomes that are used to generate the chunk */
private BiomeGenBase[] biomesForGeneration;
double[] noiseData1;
double[] noiseData2;
double[] noiseData3;
double[] noiseData4;
double[] noiseData5;
int[][] field_73203_h = new int[32][32];
private static final String __OBFID = "CL_00000397";
public ChunkProviderEnd(World p_i2007_1_, long p_i2007_2_)
{
this.endWorld = p_i2007_1_;
this.endRNG = new Random(p_i2007_2_);
this.noiseGen1 = new NoiseGeneratorOctaves(this.endRNG, 16);
this.noiseGen2 = new NoiseGeneratorOctaves(this.endRNG, 16);
this.noiseGen3 = new NoiseGeneratorOctaves(this.endRNG, 8);
this.noiseGen4 = new NoiseGeneratorOctaves(this.endRNG, 10);
this.noiseGen5 = new NoiseGeneratorOctaves(this.endRNG, 16);
NoiseGenerator[] noiseGens = {noiseGen1, noiseGen2, noiseGen3, noiseGen4, noiseGen5};
noiseGens = TerrainGen.getModdedNoiseGenerators(p_i2007_1_, this.endRNG, noiseGens);
this.noiseGen1 = (NoiseGeneratorOctaves)noiseGens[0];
this.noiseGen2 = (NoiseGeneratorOctaves)noiseGens[1];
this.noiseGen3 = (NoiseGeneratorOctaves)noiseGens[2];
this.noiseGen4 = (NoiseGeneratorOctaves)noiseGens[3];
this.noiseGen5 = (NoiseGeneratorOctaves)noiseGens[4];
}
public void func_147420_a(int p_147420_1_, int p_147420_2_, Block[] p_147420_3_, BiomeGenBase[] p_147420_4_)
{
byte b0 = 2;
int k = b0 + 1;
byte b1 = 33;
int l = b0 + 1;
this.densities = this.initializeNoiseField(this.densities, p_147420_1_ * b0, 0, p_147420_2_ * b0, k, b1, l);
for (int i1 = 0; i1 < b0; ++i1)
{
for (int j1 = 0; j1 < b0; ++j1)
{
for (int k1 = 0; k1 < 32; ++k1)
{
double d0 = 0.25D;
double d1 = this.densities[((i1 + 0) * l + j1 + 0) * b1 + k1 + 0];
double d2 = this.densities[((i1 + 0) * l + j1 + 1) * b1 + k1 + 0];
double d3 = this.densities[((i1 + 1) * l + j1 + 0) * b1 + k1 + 0];
double d4 = this.densities[((i1 + 1) * l + j1 + 1) * b1 + k1 + 0];
double d5 = (this.densities[((i1 + 0) * l + j1 + 0) * b1 + k1 + 1] - d1) * d0;
double d6 = (this.densities[((i1 + 0) * l + j1 + 1) * b1 + k1 + 1] - d2) * d0;
double d7 = (this.densities[((i1 + 1) * l + j1 + 0) * b1 + k1 + 1] - d3) * d0;
double d8 = (this.densities[((i1 + 1) * l + j1 + 1) * b1 + k1 + 1] - d4) * d0;
for (int l1 = 0; l1 < 4; ++l1)
{
double d9 = 0.125D;
double d10 = d1;
double d11 = d2;
double d12 = (d3 - d1) * d9;
double d13 = (d4 - d2) * d9;
for (int i2 = 0; i2 < 8; ++i2)
{
int j2 = i2 + i1 * 8 << 11 | 0 + j1 * 8 << 7 | k1 * 4 + l1;
short short1 = 128;
double d14 = 0.125D;
double d15 = d10;
double d16 = (d11 - d10) * d14;
for (int k2 = 0; k2 < 8; ++k2)
{
Block block = null;
if (d15 > 0.0D)
{
block = Blocks.end_stone;
}
p_147420_3_[j2] = block;
j2 += short1;
d15 += d16;
}
d10 += d12;
d11 += d13;
}
d1 += d5;
d2 += d6;
d3 += d7;
d4 += d8;
}
}
}
}
}
@Deprecated // Supply metadata to the below function.
public void func_147421_b(int p_147421_1_, int p_147421_2_, Block[] p_147421_3_, BiomeGenBase[] p_147421_4_)
{
replaceBiomeBlocks(p_147421_1_, p_147421_2_, p_147421_3_, p_147421_4_, new byte[p_147421_3_.length]);
}
public void replaceBiomeBlocks(int p_147421_1_, int p_147421_2_, Block[] p_147421_3_, BiomeGenBase[] p_147421_4_, byte[] meta)
{
ChunkProviderEvent.ReplaceBiomeBlocks event = new ChunkProviderEvent.ReplaceBiomeBlocks(this, p_147421_1_, p_147421_2_, p_147421_3_, meta, p_147421_4_, this.endWorld);
MinecraftForge.EVENT_BUS.post(event);
if (event.getResult() == Result.DENY) return;
for (int k = 0; k < 16; ++k)
{
for (int l = 0; l < 16; ++l)
{
byte b0 = 1;
int i1 = -1;
Block block = Blocks.end_stone;
Block block1 = Blocks.end_stone;
for (int j1 = 127; j1 >= 0; --j1)
{
int k1 = (l * 16 + k) * 128 + j1;
Block block2 = p_147421_3_[k1];
if (block2 != null && block2.getMaterial() != Material.air)
{
if (block2 == Blocks.stone)
{
if (i1 == -1)
{
if (b0 <= 0)
{
block = null;
block1 = Blocks.end_stone;
}
i1 = b0;
if (j1 >= 0)
{
p_147421_3_[k1] = block;
}
else
{
p_147421_3_[k1] = block1;
}
}
else if (i1 > 0)
{
--i1;
p_147421_3_[k1] = block1;
}
}
}
else
{
i1 = -1;
}
}
}
}
}
/**
* loads or generates the chunk at the chunk location specified
*/
public Chunk loadChunk(int p_73158_1_, int p_73158_2_)
{
return this.provideChunk(p_73158_1_, p_73158_2_);
}
/**
* 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 p_73154_1_, int p_73154_2_)
{
this.endRNG.setSeed((long)p_73154_1_ * 341873128712L + (long)p_73154_2_ * 132897987541L);
Block[] ablock = new Block[32768];
byte[] meta = new byte[ablock.length];
this.biomesForGeneration = this.endWorld.getWorldChunkManager().loadBlockGeneratorData(this.biomesForGeneration, p_73154_1_ * 16, p_73154_2_ * 16, 16, 16);
this.func_147420_a(p_73154_1_, p_73154_2_, ablock, this.biomesForGeneration);
this.replaceBiomeBlocks(p_73154_1_, p_73154_2_, ablock, this.biomesForGeneration, meta);
Chunk chunk = new Chunk(this.endWorld, ablock, meta, p_73154_1_, p_73154_2_);
byte[] abyte = chunk.getBiomeArray();
for (int k = 0; k < abyte.length; ++k)
{
abyte[k] = (byte)this.biomesForGeneration[k].biomeID;
}
chunk.generateSkylightMap();
return chunk;
}
/**
* generates a subset of the level's terrain data. Takes 7 arguments: the [empty] noise array, the position, and the
* size.
*/
private double[] initializeNoiseField(double[] p_73187_1_, int p_73187_2_, int p_73187_3_, int p_73187_4_, int p_73187_5_, int p_73187_6_, int p_73187_7_)
{
ChunkProviderEvent.InitNoiseField event = new ChunkProviderEvent.InitNoiseField(this, p_73187_1_, p_73187_2_, p_73187_3_, p_73187_4_, p_73187_5_, p_73187_6_, p_73187_7_);
MinecraftForge.EVENT_BUS.post(event);
if (event.getResult() == Result.DENY) return event.noisefield;
if (p_73187_1_ == null)
{
p_73187_1_ = new double[p_73187_5_ * p_73187_6_ * p_73187_7_];
}
double d0 = 684.412D;
double d1 = 684.412D;
this.noiseData4 = this.noiseGen4.generateNoiseOctaves(this.noiseData4, p_73187_2_, p_73187_4_, p_73187_5_, p_73187_7_, 1.121D, 1.121D, 0.5D);
this.noiseData5 = this.noiseGen5.generateNoiseOctaves(this.noiseData5, p_73187_2_, p_73187_4_, p_73187_5_, p_73187_7_, 200.0D, 200.0D, 0.5D);
d0 *= 2.0D;
this.noiseData1 = this.noiseGen3.generateNoiseOctaves(this.noiseData1, p_73187_2_, p_73187_3_, p_73187_4_, p_73187_5_, p_73187_6_, p_73187_7_, d0 / 80.0D, d1 / 160.0D, d0 / 80.0D);
this.noiseData2 = this.noiseGen1.generateNoiseOctaves(this.noiseData2, p_73187_2_, p_73187_3_, p_73187_4_, p_73187_5_, p_73187_6_, p_73187_7_, d0, d1, d0);
this.noiseData3 = this.noiseGen2.generateNoiseOctaves(this.noiseData3, p_73187_2_, p_73187_3_, p_73187_4_, p_73187_5_, p_73187_6_, p_73187_7_, d0, d1, d0);
int k1 = 0;
int l1 = 0;
for (int i2 = 0; i2 < p_73187_5_; ++i2)
{
for (int j2 = 0; j2 < p_73187_7_; ++j2)
{
double d2 = (this.noiseData4[l1] + 256.0D) / 512.0D;
if (d2 > 1.0D)
{
d2 = 1.0D;
}
double d3 = this.noiseData5[l1] / 8000.0D;
if (d3 < 0.0D)
{
d3 = -d3 * 0.3D;
}
d3 = d3 * 3.0D - 2.0D;
float f = (float)(i2 + p_73187_2_ - 0) / 1.0F;
float f1 = (float)(j2 + p_73187_4_ - 0) / 1.0F;
float f2 = 100.0F - MathHelper.sqrt_float(f * f + f1 * f1) * 8.0F;
if (f2 > 80.0F)
{
f2 = 80.0F;
}
if (f2 < -100.0F)
{
f2 = -100.0F;
}
if (d3 > 1.0D)
{
d3 = 1.0D;
}
d3 /= 8.0D;
d3 = 0.0D;
if (d2 < 0.0D)
{
d2 = 0.0D;
}
d2 += 0.5D;
d3 = d3 * (double)p_73187_6_ / 16.0D;
++l1;
double d4 = (double)p_73187_6_ / 2.0D;
for (int k2 = 0; k2 < p_73187_6_; ++k2)
{
double d5 = 0.0D;
double d6 = ((double)k2 - d4) * 8.0D / d2;
if (d6 < 0.0D)
{
d6 *= -1.0D;
}
double d7 = this.noiseData2[k1] / 512.0D;
double d8 = this.noiseData3[k1] / 512.0D;
double d9 = (this.noiseData1[k1] / 10.0D + 1.0D) / 2.0D;
if (d9 < 0.0D)
{
d5 = d7;
}
else if (d9 > 1.0D)
{
d5 = d8;
}
else
{
d5 = d7 + (d8 - d7) * d9;
}
d5 -= 8.0D;
d5 += (double)f2;
byte b0 = 2;
double d10;
if (k2 > p_73187_6_ / 2 - b0)
{
d10 = (double)((float)(k2 - (p_73187_6_ / 2 - b0)) / 64.0F);
if (d10 < 0.0D)
{
d10 = 0.0D;
}
if (d10 > 1.0D)
{
d10 = 1.0D;
}
d5 = d5 * (1.0D - d10) + -3000.0D * d10;
}
b0 = 8;
if (k2 < b0)
{
d10 = (double)((float)(b0 - k2) / ((float)b0 - 1.0F));
d5 = d5 * (1.0D - d10) + -30.0D * d10;
}
p_73187_1_[k1] = d5;
++k1;
}
}
}
return p_73187_1_;
}
/**
* Checks to see if a chunk exists at x, y
*/
public boolean chunkExists(int p_73149_1_, int p_73149_2_)
{
return true;
}
/**
* Populates chunk with ores etc etc
*/
public void populate(IChunkProvider p_73153_1_, int p_73153_2_, int p_73153_3_)
{
BlockFalling.fallInstantly = true;
MinecraftForge.EVENT_BUS.post(new PopulateChunkEvent.Pre(p_73153_1_, endWorld, endWorld.rand, p_73153_2_, p_73153_3_, false));
int k = p_73153_2_ * 16;
int l = p_73153_3_ * 16;
BiomeGenBase biomegenbase = this.endWorld.getBiomeGenForCoords(k + 16, l + 16);
biomegenbase.decorate(this.endWorld, this.endWorld.rand, k, l);
MinecraftForge.EVENT_BUS.post(new PopulateChunkEvent.Post(p_73153_1_, endWorld, endWorld.rand, p_73153_2_, p_73153_3_, false));
BlockFalling.fallInstantly = false;
}
/**
* Two modes of operation: if passed true, save all Chunks in one go. If passed false, save up to two chunks.
* Return true if all chunks have been saved.
*/
public boolean saveChunks(boolean p_73151_1_, IProgressUpdate p_73151_2_)
{
return true;
}
/**
* Save extra data not associated with any Chunk. Not saved during autosave, only during world unload. Currently
* unimplemented.
*/
public void saveExtraData() {}
/**
* Unloads chunks that are marked to be unloaded. This is not guaranteed to unload every such chunk.
*/
public boolean unloadQueuedChunks()
{
return false;
}
/**
* Returns if the IChunkProvider supports saving.
*/
public boolean canSave()
{
return true;
}
/**
* Converts the instance data to a readable string.
*/
public String makeString()
{
return "RandomLevelSource";
}
/**
* Returns a list of creatures of the specified type that can spawn at the given location.
*/
public List getPossibleCreatures(EnumCreatureType p_73155_1_, int p_73155_2_, int p_73155_3_, int p_73155_4_)
{
BiomeGenBase biomegenbase = this.endWorld.getBiomeGenForCoords(p_73155_2_, p_73155_4_);
return biomegenbase.getSpawnableList(p_73155_1_);
}
public ChunkPosition findClosestStructure(World p_147416_1_, String p_147416_2_, int p_147416_3_, int p_147416_4_, int p_147416_5_)
{
return null;
}
public int getLoadedChunkCount()
{
return 0;
}
public void recreateStructures(int p_82695_1_, int p_82695_2_) {}
}