package net.minecraft.world.chunk.storage;
import net.minecraft.nbt.NBTTagCompound;
import net.minecraft.nbt.NBTTagList;
import net.minecraft.world.biome.WorldChunkManager;
import net.minecraft.world.chunk.NibbleArray;
public class ChunkLoader
{
public static AnvilConverterData load(NBTTagCompound par0NBTTagCompound)
{
int var1 = par0NBTTagCompound.getInteger("xPos");
int var2 = par0NBTTagCompound.getInteger("zPos");
AnvilConverterData var3 = new AnvilConverterData(var1, var2);
var3.blocks = par0NBTTagCompound.getByteArray("Blocks");
var3.data = new NibbleArrayReader(par0NBTTagCompound.getByteArray("Data"), 7);
var3.skyLight = new NibbleArrayReader(par0NBTTagCompound.getByteArray("SkyLight"), 7);
var3.blockLight = new NibbleArrayReader(par0NBTTagCompound.getByteArray("BlockLight"), 7);
var3.heightmap = par0NBTTagCompound.getByteArray("HeightMap");
var3.terrainPopulated = par0NBTTagCompound.getBoolean("TerrainPopulated");
var3.entities = par0NBTTagCompound.getTagList("Entities");
var3.tileEntities = par0NBTTagCompound.getTagList("TileEntities");
var3.tileTicks = par0NBTTagCompound.getTagList("TileTicks");
try
{
var3.lastUpdated = par0NBTTagCompound.getLong("LastUpdate");
}
catch (ClassCastException var5)
{
var3.lastUpdated = (long)par0NBTTagCompound.getInteger("LastUpdate");
}
return var3;
}
public static void convertToAnvilFormat(AnvilConverterData par0AnvilConverterData, NBTTagCompound par1NBTTagCompound, WorldChunkManager par2WorldChunkManager)
{
par1NBTTagCompound.setInteger("xPos", par0AnvilConverterData.x);
par1NBTTagCompound.setInteger("zPos", par0AnvilConverterData.z);
par1NBTTagCompound.setLong("LastUpdate", par0AnvilConverterData.lastUpdated);
int[] var3 = new int[par0AnvilConverterData.heightmap.length];
for (int var4 = 0; var4 < par0AnvilConverterData.heightmap.length; ++var4)
{
var3[var4] = par0AnvilConverterData.heightmap[var4];
}
par1NBTTagCompound.setIntArray("HeightMap", var3);
par1NBTTagCompound.setBoolean("TerrainPopulated", par0AnvilConverterData.terrainPopulated);
NBTTagList var16 = new NBTTagList("Sections");
int var7;
for (int var5 = 0; var5 < 8; ++var5)
{
boolean var6 = true;
for (var7 = 0; var7 < 16 && var6; ++var7)
{
int var8 = 0;
while (var8 < 16 && var6)
{
int var9 = 0;
while (true)
{
if (var9 < 16)
{
int var10 = var7 << 11 | var9 << 7 | var8 + (var5 << 4);
byte var11 = par0AnvilConverterData.blocks[var10];
if (var11 == 0)
{
++var9;
continue;
}
var6 = false;
}
++var8;
break;
}
}
}
if (!var6)
{
byte[] var19 = new byte[4096];
NibbleArray var20 = new NibbleArray(var19.length, 4);
NibbleArray var21 = new NibbleArray(var19.length, 4);
NibbleArray var23 = new NibbleArray(var19.length, 4);
for (int var22 = 0; var22 < 16; ++var22)
{
for (int var12 = 0; var12 < 16; ++var12)
{
for (int var13 = 0; var13 < 16; ++var13)
{
int var14 = var22 << 11 | var13 << 7 | var12 + (var5 << 4);
byte var15 = par0AnvilConverterData.blocks[var14];
var19[var12 << 8 | var13 << 4 | var22] = (byte)(var15 & 255);
var20.set(var22, var12, var13, par0AnvilConverterData.data.get(var22, var12 + (var5 << 4), var13));
var21.set(var22, var12, var13, par0AnvilConverterData.skyLight.get(var22, var12 + (var5 << 4), var13));
var23.set(var22, var12, var13, par0AnvilConverterData.blockLight.get(var22, var12 + (var5 << 4), var13));
}
}
}
NBTTagCompound var24 = new NBTTagCompound();
var24.setByte("Y", (byte)(var5 & 255));
var24.setByteArray("Blocks", var19);
var24.setByteArray("Data", var20.data);
var24.setByteArray("SkyLight", var21.data);
var24.setByteArray("BlockLight", var23.data);
var16.appendTag(var24);
}
}
par1NBTTagCompound.setTag("Sections", var16);
byte[] var17 = new byte[256];
for (int var18 = 0; var18 < 16; ++var18)
{
for (var7 = 0; var7 < 16; ++var7)
{
var17[var7 << 4 | var18] = (byte)(par2WorldChunkManager.getBiomeGenAt(par0AnvilConverterData.x << 4 | var18, par0AnvilConverterData.z << 4 | var7).biomeID & 255);
}
}
par1NBTTagCompound.setByteArray("Biomes", var17);
par1NBTTagCompound.setTag("Entities", par0AnvilConverterData.entities);
par1NBTTagCompound.setTag("TileEntities", par0AnvilConverterData.tileEntities);
if (par0AnvilConverterData.tileTicks != null)
{
par1NBTTagCompound.setTag("TileTicks", par0AnvilConverterData.tileTicks);
}
}
}