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File compression

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This commit is contained in:
PeytonPlayz595 2024-02-12 10:07:18 -05:00
parent 2dbebbd2ea
commit be661b51f2
7 changed files with 6554 additions and 3330 deletions
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4837
offline_download/Alpha_Offline_Download.html
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7
src/main/java/net/lax1dude/eaglercraft/adapter/EaglerAdapterImpl2.java
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@ -1781,4 +1781,11 @@ public class EaglerAdapterImpl2 {
downloadFile0(filename, b.getBuffer()); downloadFile0(filename, b.getBuffer());
} }
public static boolean isCompressed(byte[] b) {
if(b == null || b.length < 2) {
return false;
}
return (b[0] == (byte) 0x1F) && (b[1] == (byte) 0x8B);
}
} }

20
src/main/java/net/minecraft/src/ChunkLoader.java
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@ -69,7 +69,12 @@ public class ChunkLoader implements IChunkLoader {
try { try {
byte[] data = GL11.readFile(var4); byte[] data = GL11.readFile(var4);
ByteArrayInputStream var5 = new ByteArrayInputStream(data); ByteArrayInputStream var5 = new ByteArrayInputStream(data);
NBTTagCompound var6 = (NBTTagCompound) NBTBase.readTag(new DataInputStream(var5)); NBTTagCompound var6;
if(GL11.isCompressed(data)) {
var6 = CompressedStreamTools.func_1138_a(var5);
} else {
var6 = (NBTTagCompound) NBTBase.readTag(new DataInputStream(var5));
}
if(!var6.hasKey("Level")) { if(!var6.hasKey("Level")) {
System.out.println("Chunk file at " + var2 + "," + var3 + " is missing level data, skipping"); System.out.println("Chunk file at " + var2 + "," + var3 + " is missing level data, skipping");
return null; return null;
@ -111,15 +116,10 @@ public class ChunkLoader implements IChunkLoader {
NBTTagCompound var7 = new NBTTagCompound(); NBTTagCompound var7 = new NBTTagCompound();
var6.setTag("Level", var7); var6.setTag("Level", var7);
this.storeChunkInCompound(var2, var1, var7); this.storeChunkInCompound(var2, var1, var7);
try (DataOutputStream dos = new DataOutputStream(new BufferedOutputStream(var5))) { CompressedStreamTools.writeGzippedCompoundToOutputStream(var6, var5);
NBTBase.writeTag(var6, dos); var5.flush();
dos.flush(); GL11.writeFile(var4, var5.toByteArray());
var5.flush(); var5.close();
GL11.writeFile(var4, var5.toByteArray());
var5.close();
} catch(IOException e) {
e.printStackTrace();
}
if(GL11.readFile(var3) != null) { if(GL11.readFile(var3) != null) {
GL11.deleteFile(var3); GL11.deleteFile(var3);

157
src/main/java/net/minecraft/src/CompressedStreamTools.java
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@ -1,78 +1,79 @@
//package net.minecraft.src; package net.minecraft.src;
//
//import java.io.ByteArrayInputStream; import java.io.ByteArrayInputStream;
//import java.io.ByteArrayOutputStream; import java.io.ByteArrayOutputStream;
//import java.io.DataInput; import java.io.DataInput;
//import java.io.DataInputStream; import java.io.DataInputStream;
//import java.io.DataOutput; import java.io.DataOutput;
//import java.io.DataOutputStream; import java.io.DataOutputStream;
//import java.io.IOException; import java.io.IOException;
//import java.io.InputStream; import java.io.InputStream;
//import java.io.OutputStream; import java.io.OutputStream;
//import java.util.zip.GZIPInputStream;
//import java.util.zip.GZIPOutputStream; import com.jcraft.jzlib.GZIPInputStream;
// import com.jcraft.jzlib.GZIPOutputStream;
//public class CompressedStreamTools {
// public static NBTTagCompound func_1138_a(InputStream var0) throws IOException { public class CompressedStreamTools {
// DataInputStream var1 = new DataInputStream(new GZIPInputStream(var0)); public static NBTTagCompound func_1138_a(InputStream var0) throws IOException {
// DataInputStream var1 = new DataInputStream(new GZIPInputStream(var0));
// NBTTagCompound var2;
// try { NBTTagCompound var2;
// var2 = func_1141_a(var1); try {
// } finally { var2 = func_1141_a(var1);
// var1.close(); } finally {
// } var1.close();
// }
// return var2;
// } return var2;
// }
// public static void writeGzippedCompoundToOutputStream(NBTTagCompound var0, OutputStream var1) throws IOException {
// DataOutputStream var2 = new DataOutputStream(new GZIPOutputStream(var1)); public static void writeGzippedCompoundToOutputStream(NBTTagCompound var0, OutputStream var1) throws IOException {
// DataOutputStream var2 = new DataOutputStream(new GZIPOutputStream(var1));
// try {
// func_1139_a(var0, var2); try {
// } finally { func_1139_a(var0, var2);
// var2.close(); } finally {
// } var2.close();
// }
// }
// }
// public static NBTTagCompound func_1140_a(byte[] var0) throws IOException {
// DataInputStream var1 = new DataInputStream(new GZIPInputStream(new ByteArrayInputStream(var0))); public static NBTTagCompound func_1140_a(byte[] var0) throws IOException {
// DataInputStream var1 = new DataInputStream(new GZIPInputStream(new ByteArrayInputStream(var0)));
// NBTTagCompound var2;
// try { NBTTagCompound var2;
// var2 = func_1141_a(var1); try {
// } finally { var2 = func_1141_a(var1);
// var1.close(); } finally {
// } var1.close();
// }
// return var2;
// } return var2;
// }
// public static byte[] func_1142_a(NBTTagCompound var0) throws IOException {
// ByteArrayOutputStream var1 = new ByteArrayOutputStream(); public static byte[] func_1142_a(NBTTagCompound var0) throws IOException {
// DataOutputStream var2 = new DataOutputStream(new GZIPOutputStream(var1)); ByteArrayOutputStream var1 = new ByteArrayOutputStream();
// DataOutputStream var2 = new DataOutputStream(new GZIPOutputStream(var1));
// try {
// func_1139_a(var0, var2); try {
// } finally { func_1139_a(var0, var2);
// var2.close(); } finally {
// } var2.close();
// }
// return var1.toByteArray();
// } return var1.toByteArray();
// }
// public static NBTTagCompound func_1141_a(DataInput var0) throws IOException {
// NBTBase var1 = NBTBase.readTag(var0); public static NBTTagCompound func_1141_a(DataInput var0) throws IOException {
// if(var1 instanceof NBTTagCompound) { NBTBase var1 = NBTBase.readTag(var0);
// return (NBTTagCompound)var1; if(var1 instanceof NBTTagCompound) {
// } else { return (NBTTagCompound)var1;
// throw new IOException("Root tag must be a named compound tag"); } else {
// } throw new IOException("Root tag must be a named compound tag");
// } }
// }
// public static void func_1139_a(NBTTagCompound var0, DataOutput var1) throws IOException {
// NBTBase.writeTag(var0, var1); public static void func_1139_a(NBTTagCompound var0, DataOutput var1) throws IOException {
// } NBTBase.writeTag(var0, var1);
//} }
}

24
src/main/java/net/minecraft/src/World.java
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@ -64,7 +64,12 @@ public class World implements IBlockAccess {
byte[] data = GL11.readFile("saves/" + var1 + "/level.dat"); byte[] data = GL11.readFile("saves/" + var1 + "/level.dat");
if(!(data == null)) { if(!(data == null)) {
try { try {
NBTTagCompound var5 = (NBTTagCompound) NBTBase.readTag(new DataInputStream(new ByteArrayInputStream(data))); NBTTagCompound var5;
if(GL11.isCompressed(data)) {
var5 = CompressedStreamTools.func_1138_a(new ByteArrayInputStream(data));
} else {
var5 = (NBTTagCompound) NBTBase.readTag(new DataInputStream(new ByteArrayInputStream(data)));
}
NBTTagCompound var6 = var5.getCompoundTag("Data"); NBTTagCompound var6 = var5.getCompoundTag("Data");
return var6; return var6;
} catch (Exception var7) { } catch (Exception var7) {
@ -233,7 +238,12 @@ public class World implements IBlockAccess {
byte[] data = GL11.readFile(var18); byte[] data = GL11.readFile(var18);
if(data != null) { if(data != null) {
try { try {
NBTTagCompound var8 = (NBTTagCompound) NBTBase.readTag(new DataInputStream(new ByteArrayInputStream(data))); NBTTagCompound var8;
if(GL11.isCompressed(data)) {
var8 = CompressedStreamTools.func_1138_a(new ByteArrayInputStream(data));
} else {
var8 = (NBTTagCompound) NBTBase.readTag(new DataInputStream(new ByteArrayInputStream(data)));
}
NBTTagCompound var9 = var8.getCompoundTag("Data"); NBTTagCompound var9 = var8.getCompoundTag("Data");
this.randomSeed = var9.getLong("RandomSeed"); this.randomSeed = var9.getLong("RandomSeed");
this.spawnX = var9.getInteger("SpawnX"); this.spawnX = var9.getInteger("SpawnX");
@ -367,15 +377,7 @@ public class World implements IBlockAccess {
String var5 = field_9432_t + "/level.dat_old"; String var5 = field_9432_t + "/level.dat_old";
String var6 = field_9432_t + "/level.dat"; String var6 = field_9432_t + "/level.dat";
ByteArrayOutputStream data = new ByteArrayOutputStream(); ByteArrayOutputStream data = new ByteArrayOutputStream();
try (DataOutputStream dos = new DataOutputStream(new BufferedOutputStream(data))) { CompressedStreamTools.writeGzippedCompoundToOutputStream(var3, data);
NBTBase.writeTag(var3, dos);
dos.flush();
byte[] file = data.toByteArray();
GL11.writeFile(var6, file);
} catch(IOException e) {
e.printStackTrace();
}
GL11.writeFile(var4, data.toByteArray()); GL11.writeFile(var4, data.toByteArray());
if(GL11.readFile(var5) != null) { if(GL11.readFile(var5) != null) {

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web/js/app.js
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2
web/js/app.js.map
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