package net.minecraft.world.gen;
import java.util.List;
import java.util.Random;
import net.minecraft.block.Block;
import net.minecraft.block.BlockSand;
import net.minecraft.entity.EnumCreatureType;
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 net.minecraftforge.event.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];
public ChunkProviderEnd(World par1World, long par2)
{
this.endWorld = par1World;
this.endRNG = new Random(par2);
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);
NoiseGeneratorOctaves[] noiseGens = {noiseGen1, noiseGen2, noiseGen3, noiseGen4, noiseGen5};
noiseGens = TerrainGen.getModdedNoiseGenerators(par1World, this.endRNG, noiseGens);
this.noiseGen1 = noiseGens[0];
this.noiseGen2 = noiseGens[1];
this.noiseGen3 = noiseGens[2];
this.noiseGen4 = noiseGens[3];
this.noiseGen5 = noiseGens[4];
}
public void generateTerrain(int par1, int par2, byte[] par3ArrayOfByte, BiomeGenBase[] par4ArrayOfBiomeGenBase)
{
byte var5 = 2;
int var6 = var5 + 1;
byte var7 = 33;
int var8 = var5 + 1;
this.densities = this.initializeNoiseField(this.densities, par1 * var5, 0, par2 * var5, var6, var7, var8);
for (int var9 = 0; var9 < var5; ++var9)
{
for (int var10 = 0; var10 < var5; ++var10)
{
for (int var11 = 0; var11 < 32; ++var11)
{
double var12 = 0.25D;
double var14 = this.densities[((var9 + 0) * var8 + var10 + 0) * var7 + var11 + 0];
double var16 = this.densities[((var9 + 0) * var8 + var10 + 1) * var7 + var11 + 0];
double var18 = this.densities[((var9 + 1) * var8 + var10 + 0) * var7 + var11 + 0];
double var20 = this.densities[((var9 + 1) * var8 + var10 + 1) * var7 + var11 + 0];
double var22 = (this.densities[((var9 + 0) * var8 + var10 + 0) * var7 + var11 + 1] - var14) * var12;
double var24 = (this.densities[((var9 + 0) * var8 + var10 + 1) * var7 + var11 + 1] - var16) * var12;
double var26 = (this.densities[((var9 + 1) * var8 + var10 + 0) * var7 + var11 + 1] - var18) * var12;
double var28 = (this.densities[((var9 + 1) * var8 + var10 + 1) * var7 + var11 + 1] - var20) * var12;
for (int var30 = 0; var30 < 4; ++var30)
{
double var31 = 0.125D;
double var33 = var14;
double var35 = var16;
double var37 = (var18 - var14) * var31;
double var39 = (var20 - var16) * var31;
for (int var41 = 0; var41 < 8; ++var41)
{
int var42 = var41 + var9 * 8 << 11 | 0 + var10 * 8 << 7 | var11 * 4 + var30;
short var43 = 128;
double var44 = 0.125D;
double var46 = var33;
double var48 = (var35 - var33) * var44;
for (int var50 = 0; var50 < 8; ++var50)
{
int var51 = 0;
if (var46 > 0.0D)
{
var51 = Block.whiteStone.blockID;
}
par3ArrayOfByte[var42] = (byte)var51;
var42 += var43;
var46 += var48;
}
var33 += var37;
var35 += var39;
}
var14 += var22;
var16 += var24;
var18 += var26;
var20 += var28;
}
}
}
}
}
public void replaceBlocksForBiome(int par1, int par2, byte[] par3ArrayOfByte, BiomeGenBase[] par4ArrayOfBiomeGenBase)
{
ChunkProviderEvent.ReplaceBiomeBlocks event = new ChunkProviderEvent.ReplaceBiomeBlocks(this, par1, par2, par3ArrayOfByte, par4ArrayOfBiomeGenBase);
MinecraftForge.EVENT_BUS.post(event);
if (event.getResult() == Result.DENY) return;
for (int var5 = 0; var5 < 16; ++var5)
{
for (int var6 = 0; var6 < 16; ++var6)
{
byte var7 = 1;
int var8 = -1;
byte var9 = (byte)Block.whiteStone.blockID;
byte var10 = (byte)Block.whiteStone.blockID;
for (int var11 = 127; var11 >= 0; --var11)
{
int var12 = (var6 * 16 + var5) * 128 + var11;
byte var13 = par3ArrayOfByte[var12];
if (var13 == 0)
{
var8 = -1;
}
else if (var13 == Block.stone.blockID)
{
if (var8 == -1)
{
if (var7 <= 0)
{
var9 = 0;
var10 = (byte)Block.whiteStone.blockID;
}
var8 = var7;
if (var11 >= 0)
{
par3ArrayOfByte[var12] = var9;
}
else
{
par3ArrayOfByte[var12] = var10;
}
}
else if (var8 > 0)
{
--var8;
par3ArrayOfByte[var12] = var10;
}
}
}
}
}
}
/**
* loads or generates the chunk at the chunk location specified
*/
public Chunk loadChunk(int par1, int par2)
{
return this.provideChunk(par1, par2);
}
/**
* 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)
{
this.endRNG.setSeed((long)par1 * 341873128712L + (long)par2 * 132897987541L);
byte[] var3 = new byte[32768];
this.biomesForGeneration = this.endWorld.getWorldChunkManager().loadBlockGeneratorData(this.biomesForGeneration, par1 * 16, par2 * 16, 16, 16);
this.generateTerrain(par1, par2, var3, this.biomesForGeneration);
this.replaceBlocksForBiome(par1, par2, var3, this.biomesForGeneration);
Chunk var4 = new Chunk(this.endWorld, var3, par1, par2);
byte[] var5 = var4.getBiomeArray();
for (int var6 = 0; var6 < var5.length; ++var6)
{
var5[var6] = (byte)this.biomesForGeneration[var6].biomeID;
}
var4.generateSkylightMap();
return var4;
}
/**
* 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[] par1ArrayOfDouble, int par2, int par3, int par4, int par5, int par6, int par7)
{
ChunkProviderEvent.InitNoiseField event = new ChunkProviderEvent.InitNoiseField(this, par1ArrayOfDouble, par2, par3, par4, par5, par6, par7);
MinecraftForge.EVENT_BUS.post(event);
if (event.getResult() == Result.DENY) return event.noisefield;
if (par1ArrayOfDouble == null)
{
par1ArrayOfDouble = new double[par5 * par6 * par7];
}
double var8 = 684.412D;
double var10 = 684.412D;
this.noiseData4 = this.noiseGen4.generateNoiseOctaves(this.noiseData4, par2, par4, par5, par7, 1.121D, 1.121D, 0.5D);
this.noiseData5 = this.noiseGen5.generateNoiseOctaves(this.noiseData5, par2, par4, par5, par7, 200.0D, 200.0D, 0.5D);
var8 *= 2.0D;
this.noiseData1 = this.noiseGen3.generateNoiseOctaves(this.noiseData1, par2, par3, par4, par5, par6, par7, var8 / 80.0D, var10 / 160.0D, var8 / 80.0D);
this.noiseData2 = this.noiseGen1.generateNoiseOctaves(this.noiseData2, par2, par3, par4, par5, par6, par7, var8, var10, var8);
this.noiseData3 = this.noiseGen2.generateNoiseOctaves(this.noiseData3, par2, par3, par4, par5, par6, par7, var8, var10, var8);
int var12 = 0;
int var13 = 0;
for (int var14 = 0; var14 < par5; ++var14)
{
for (int var15 = 0; var15 < par7; ++var15)
{
double var16 = (this.noiseData4[var13] + 256.0D) / 512.0D;
if (var16 > 1.0D)
{
var16 = 1.0D;
}
double var18 = this.noiseData5[var13] / 8000.0D;
if (var18 < 0.0D)
{
var18 = -var18 * 0.3D;
}
var18 = var18 * 3.0D - 2.0D;
float var20 = (float)(var14 + par2 - 0) / 1.0F;
float var21 = (float)(var15 + par4 - 0) / 1.0F;
float var22 = 100.0F - MathHelper.sqrt_float(var20 * var20 + var21 * var21) * 8.0F;
if (var22 > 80.0F)
{
var22 = 80.0F;
}
if (var22 < -100.0F)
{
var22 = -100.0F;
}
if (var18 > 1.0D)
{
var18 = 1.0D;
}
var18 /= 8.0D;
var18 = 0.0D;
if (var16 < 0.0D)
{
var16 = 0.0D;
}
var16 += 0.5D;
var18 = var18 * (double)par6 / 16.0D;
++var13;
double var23 = (double)par6 / 2.0D;
for (int var25 = 0; var25 < par6; ++var25)
{
double var26 = 0.0D;
double var28 = ((double)var25 - var23) * 8.0D / var16;
if (var28 < 0.0D)
{
var28 *= -1.0D;
}
double var30 = this.noiseData2[var12] / 512.0D;
double var32 = this.noiseData3[var12] / 512.0D;
double var34 = (this.noiseData1[var12] / 10.0D + 1.0D) / 2.0D;
if (var34 < 0.0D)
{
var26 = var30;
}
else if (var34 > 1.0D)
{
var26 = var32;
}
else
{
var26 = var30 + (var32 - var30) * var34;
}
var26 -= 8.0D;
var26 += (double)var22;
byte var36 = 2;
double var37;
if (var25 > par6 / 2 - var36)
{
var37 = (double)((float)(var25 - (par6 / 2 - var36)) / 64.0F);
if (var37 < 0.0D)
{
var37 = 0.0D;
}
if (var37 > 1.0D)
{
var37 = 1.0D;
}
var26 = var26 * (1.0D - var37) + -3000.0D * var37;
}
var36 = 8;
if (var25 < var36)
{
var37 = (double)((float)(var36 - var25) / ((float)var36 - 1.0F));
var26 = var26 * (1.0D - var37) + -30.0D * var37;
}
par1ArrayOfDouble[var12] = var26;
++var12;
}
}
}
return par1ArrayOfDouble;
}
/**
* Checks to see if a chunk exists at x, y
*/
public boolean chunkExists(int par1, int par2)
{
return true;
}
/**
* Populates chunk with ores etc etc
*/
public void populate(IChunkProvider par1IChunkProvider, int par2, int par3)
{
BlockSand.fallInstantly = true;
MinecraftForge.EVENT_BUS.post(new PopulateChunkEvent.Pre(par1IChunkProvider, endWorld, endWorld.rand, par2, par3, false));
int var4 = par2 * 16;
int var5 = par3 * 16;
BiomeGenBase var6 = this.endWorld.getBiomeGenForCoords(var4 + 16, var5 + 16);
var6.decorate(this.endWorld, this.endWorld.rand, var4, var5);
MinecraftForge.EVENT_BUS.post(new PopulateChunkEvent.Post(par1IChunkProvider, endWorld, endWorld.rand, par2, par3, false));
BlockSand.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 par1, IProgressUpdate par2IProgressUpdate)
{
return true;
}
/**
* Unloads the 100 oldest chunks from memory, due to a bug with chunkSet.add() never being called it thinks the list
* is always empty and will not remove any chunks.
*/
public boolean unload100OldestChunks()
{
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 par1EnumCreatureType, int par2, int par3, int par4)
{
BiomeGenBase var5 = this.endWorld.getBiomeGenForCoords(par2, par4);
return var5 == null ? null : var5.getSpawnableList(par1EnumCreatureType);
}
/**
* Returns the location of the closest structure of the specified type. If not found returns null.
*/
public ChunkPosition findClosestStructure(World par1World, String par2Str, int par3, int par4, int par5)
{
return null;
}
public int getLoadedChunkCount()
{
return 0;
}
public void recreateStructures(int par1, int par2) {}
}