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 b0 = 2;
int k = b0 + 1;
byte b1 = 33;
int l = b0 + 1;
this.densities = this.initializeNoiseField(this.densities, par1 * b0, 0, par2 * 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)
{
int l2 = 0;
if (d15 > 0.0D)
{
l2 = Block.whiteStone.blockID;
}
par3ArrayOfByte[j2] = (byte)l2;
j2 += short1;
d15 += d16;
}
d10 += d12;
d11 += d13;
}
d1 += d5;
d2 += d6;
d3 += d7;
d4 += d8;
}
}
}
}
}
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 k = 0; k < 16; ++k)
{
for (int l = 0; l < 16; ++l)
{
byte b0 = 1;
int i1 = -1;
byte b1 = (byte)Block.whiteStone.blockID;
byte b2 = (byte)Block.whiteStone.blockID;
for (int j1 = 127; j1 >= 0; --j1)
{
int k1 = (l * 16 + k) * 128 + j1;
byte b3 = par3ArrayOfByte[k1];
if (b3 == 0)
{
i1 = -1;
}
else if (b3 == Block.stone.blockID)
{
if (i1 == -1)
{
if (b0 <= 0)
{
b1 = 0;
b2 = (byte)Block.whiteStone.blockID;
}
i1 = b0;
if (j1 >= 0)
{
par3ArrayOfByte[k1] = b1;
}
else
{
par3ArrayOfByte[k1] = b2;
}
}
else if (i1 > 0)
{
--i1;
par3ArrayOfByte[k1] = b2;
}
}
}
}
}
}
/**
* 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[] abyte = new byte[32768];
this.biomesForGeneration = this.endWorld.getWorldChunkManager().loadBlockGeneratorData(this.biomesForGeneration, par1 * 16, par2 * 16, 16, 16);
this.generateTerrain(par1, par2, abyte, this.biomesForGeneration);
this.replaceBlocksForBiome(par1, par2, abyte, this.biomesForGeneration);
Chunk chunk = new Chunk(this.endWorld, abyte, par1, par2);
byte[] abyte1 = chunk.getBiomeArray();
for (int k = 0; k < abyte1.length; ++k)
{
abyte1[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[] 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 d0 = 684.412D;
double d1 = 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);
d0 *= 2.0D;
this.noiseData1 = this.noiseGen3.generateNoiseOctaves(this.noiseData1, par2, par3, par4, par5, par6, par7, d0 / 80.0D, d1 / 160.0D, d0 / 80.0D);
this.noiseData2 = this.noiseGen1.generateNoiseOctaves(this.noiseData2, par2, par3, par4, par5, par6, par7, d0, d1, d0);
this.noiseData3 = this.noiseGen2.generateNoiseOctaves(this.noiseData3, par2, par3, par4, par5, par6, par7, d0, d1, d0);
int k1 = 0;
int l1 = 0;
for (int i2 = 0; i2 < par5; ++i2)
{
for (int j2 = 0; j2 < par7; ++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 + par2 - 0) / 1.0F;
float f1 = (float)(j2 + par4 - 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)par6 / 16.0D;
++l1;
double d4 = (double)par6 / 2.0D;
for (int k2 = 0; k2 < par6; ++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 > par6 / 2 - b0)
{
d10 = (double)((float)(k2 - (par6 / 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;
}
par1ArrayOfDouble[k1] = d5;
++k1;
}
}
}
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 k = par2 * 16;
int l = par3 * 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(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;
}
public void func_104112_b() {}
/**
* 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 par1EnumCreatureType, int par2, int par3, int par4)
{
BiomeGenBase biomegenbase = this.endWorld.getBiomeGenForCoords(par2, par4);
return biomegenbase == null ? null : biomegenbase.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) {}
}