package net.minecraft.world.chunk.storage;
import com.google.common.collect.Lists;
import java.io.DataInputStream;
import java.io.DataOutputStream;
import java.io.File;
import java.io.FilenameFilter;
import java.io.IOException;
import java.util.ArrayList;
import java.util.Collection;
import java.util.Collections;
import java.util.Iterator;
import net.minecraft.nbt.CompressedStreamTools;
import net.minecraft.nbt.NBTTagCompound;
import net.minecraft.util.IProgressUpdate;
import net.minecraft.world.WorldType;
import net.minecraft.world.biome.BiomeGenBase;
import net.minecraft.world.biome.WorldChunkManager;
import net.minecraft.world.biome.WorldChunkManagerHell;
import net.minecraft.world.storage.ISaveHandler;
import net.minecraft.world.storage.SaveFormatOld;
import net.minecraft.world.storage.WorldInfo;
import org.apache.logging.log4j.LogManager;
import org.apache.logging.log4j.Logger;
public class AnvilSaveConverter extends SaveFormatOld
{
private static final Logger logger = LogManager.getLogger();
private static final String __OBFID = "CL_00000582";
public AnvilSaveConverter(File p_i2144_1_)
{
super(p_i2144_1_);
}
protected int getSaveVersion()
{
return 19133;
}
public void flushCache()
{
RegionFileCache.clearRegionFileReferences();
}
/**
* Returns back a loader for the specified save directory
*/
public ISaveHandler getSaveLoader(String p_75804_1_, boolean p_75804_2_)
{
return new AnvilSaveHandler(this.savesDirectory, p_75804_1_, p_75804_2_);
}
/**
* gets if the map is old chunk saving (true) or McRegion (false)
*/
public boolean isOldMapFormat(String p_75801_1_)
{
WorldInfo var2 = this.getWorldInfo(p_75801_1_);
return var2 != null && var2.getSaveVersion() != this.getSaveVersion();
}
/**
* converts the map to mcRegion
*/
public boolean convertMapFormat(String p_75805_1_, IProgressUpdate p_75805_2_)
{
p_75805_2_.setLoadingProgress(0);
ArrayList var3 = Lists.newArrayList();
ArrayList var4 = Lists.newArrayList();
ArrayList var5 = Lists.newArrayList();
File var6 = new File(this.savesDirectory, p_75805_1_);
File var7 = new File(var6, "DIM-1");
File var8 = new File(var6, "DIM1");
logger.info("Scanning folders...");
this.addRegionFilesToCollection(var6, var3);
if (var7.exists())
{
this.addRegionFilesToCollection(var7, var4);
}
if (var8.exists())
{
this.addRegionFilesToCollection(var8, var5);
}
int var9 = var3.size() + var4.size() + var5.size();
logger.info("Total conversion count is " + var9);
WorldInfo var10 = this.getWorldInfo(p_75805_1_);
Object var11 = null;
if (var10.getTerrainType() == WorldType.FLAT)
{
var11 = new WorldChunkManagerHell(BiomeGenBase.plains, 0.5F);
}
else
{
var11 = new WorldChunkManager(var10.getSeed(), var10.getTerrainType(), var10.getGeneratorOptions());
}
this.convertFile(new File(var6, "region"), var3, (WorldChunkManager)var11, 0, var9, p_75805_2_);
this.convertFile(new File(var7, "region"), var4, new WorldChunkManagerHell(BiomeGenBase.hell, 0.0F), var3.size(), var9, p_75805_2_);
this.convertFile(new File(var8, "region"), var5, new WorldChunkManagerHell(BiomeGenBase.sky, 0.0F), var3.size() + var4.size(), var9, p_75805_2_);
var10.setSaveVersion(19133);
if (var10.getTerrainType() == WorldType.DEFAULT_1_1)
{
var10.setTerrainType(WorldType.DEFAULT);
}
this.createFile(p_75805_1_);
ISaveHandler var12 = this.getSaveLoader(p_75805_1_, false);
var12.saveWorldInfo(var10);
return true;
}
/**
* par: filename for the level.dat_mcr backup
*/
private void createFile(String p_75809_1_)
{
File var2 = new File(this.savesDirectory, p_75809_1_);
if (!var2.exists())
{
logger.warn("Unable to create level.dat_mcr backup");
}
else
{
File var3 = new File(var2, "level.dat");
if (!var3.exists())
{
logger.warn("Unable to create level.dat_mcr backup");
}
else
{
File var4 = new File(var2, "level.dat_mcr");
if (!var3.renameTo(var4))
{
logger.warn("Unable to create level.dat_mcr backup");
}
}
}
}
private void convertFile(File p_75813_1_, Iterable p_75813_2_, WorldChunkManager p_75813_3_, int p_75813_4_, int p_75813_5_, IProgressUpdate p_75813_6_)
{
Iterator var7 = p_75813_2_.iterator();
while (var7.hasNext())
{
File var8 = (File)var7.next();
this.convertChunks(p_75813_1_, var8, p_75813_3_, p_75813_4_, p_75813_5_, p_75813_6_);
++p_75813_4_;
int var9 = (int)Math.round(100.0D * (double)p_75813_4_ / (double)p_75813_5_);
p_75813_6_.setLoadingProgress(var9);
}
}
/**
* copies a 32x32 chunk set from par2File to par1File, via AnvilConverterData
*/
private void convertChunks(File p_75811_1_, File p_75811_2_, WorldChunkManager p_75811_3_, int p_75811_4_, int p_75811_5_, IProgressUpdate p_75811_6_)
{
try
{
String var7 = p_75811_2_.getName();
RegionFile var8 = new RegionFile(p_75811_2_);
RegionFile var9 = new RegionFile(new File(p_75811_1_, var7.substring(0, var7.length() - ".mcr".length()) + ".mca"));
for (int var10 = 0; var10 < 32; ++var10)
{
int var11;
for (var11 = 0; var11 < 32; ++var11)
{
if (var8.isChunkSaved(var10, var11) && !var9.isChunkSaved(var10, var11))
{
DataInputStream var12 = var8.getChunkDataInputStream(var10, var11);
if (var12 == null)
{
logger.warn("Failed to fetch input stream");
}
else
{
NBTTagCompound var13 = CompressedStreamTools.read(var12);
var12.close();
NBTTagCompound var14 = var13.getCompoundTag("Level");
ChunkLoader.AnvilConverterData var15 = ChunkLoader.load(var14);
NBTTagCompound var16 = new NBTTagCompound();
NBTTagCompound var17 = new NBTTagCompound();
var16.setTag("Level", var17);
ChunkLoader.convertToAnvilFormat(var15, var17, p_75811_3_);
DataOutputStream var18 = var9.getChunkDataOutputStream(var10, var11);
CompressedStreamTools.write(var16, var18);
var18.close();
}
}
}
var11 = (int)Math.round(100.0D * (double)(p_75811_4_ * 1024) / (double)(p_75811_5_ * 1024));
int var20 = (int)Math.round(100.0D * (double)((var10 + 1) * 32 + p_75811_4_ * 1024) / (double)(p_75811_5_ * 1024));
if (var20 > var11)
{
p_75811_6_.setLoadingProgress(var20);
}
}
var8.close();
var9.close();
}
catch (IOException var19)
{
var19.printStackTrace();
}
}
/**
* filters the files in the par1 directory, and adds them to the par2 collections
*/
private void addRegionFilesToCollection(File p_75810_1_, Collection p_75810_2_)
{
File var3 = new File(p_75810_1_, "region");
File[] var4 = var3.listFiles(new FilenameFilter()
{
private static final String __OBFID = "CL_00000583";
public boolean accept(File p_accept_1_, String p_accept_2_)
{
return p_accept_2_.endsWith(".mcr");
}
});
if (var4 != null)
{
Collections.addAll(p_75810_2_, var4);
}
}
}