79 Zeilen
2.9 KiB
Java
79 Zeilen
2.9 KiB
Java
/*
|
|
This file is a part of the SteamWar software.
|
|
|
|
Copyright (C) 2021 SteamWar.de-Serverteam
|
|
|
|
This program is free software: you can redistribute it and/or modify
|
|
it under the terms of the GNU Affero General Public License as published by
|
|
the Free Software Foundation, either version 3 of the License, or
|
|
(at your option) any later version.
|
|
|
|
This program is distributed in the hope that it will be useful,
|
|
but WITHOUT ANY WARRANTY; without even the implied warranty of
|
|
MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
|
|
GNU Affero General Public License for more details.
|
|
|
|
You should have received a copy of the GNU Affero General Public License
|
|
along with this program. If not, see <https://www.gnu.org/licenses/>.
|
|
*/
|
|
|
|
package de.steamwar.fightsystem.utils;
|
|
|
|
import io.netty.buffer.ByteBuf;
|
|
import io.netty.buffer.UnpooledByteBufAllocator;
|
|
import org.bukkit.Bukkit;
|
|
|
|
import java.util.Set;
|
|
import java.util.function.BiFunction;
|
|
import java.util.logging.Level;
|
|
|
|
public class TechHider9 implements BiFunction<byte[], Integer, byte[]> {
|
|
|
|
private final Set<Integer> hiddenBlockIds = BlockIdWrapper.impl.getHiddenBlockIds();
|
|
private final int obfuscateWith = BlockIdWrapper.impl.getObfuscateWith();
|
|
|
|
@Override
|
|
public byte[] apply(byte[] data, Integer primaryBitMask) {
|
|
ByteBuf buffer = UnpooledByteBufAllocator.DEFAULT.directBuffer(data.length + 100);
|
|
int i = 0;
|
|
|
|
while(i < data.length){
|
|
byte bitsPerBlock = data[i++];
|
|
buffer.writeByte(bitsPerBlock);
|
|
|
|
if(bitsPerBlock != 13){
|
|
int paletteLength = TechHider.readVarInt(data, i);
|
|
int paletteLengthLength = TechHider.readVarIntLength(data, i);
|
|
buffer.writeBytes(data, i, paletteLengthLength);
|
|
i += paletteLengthLength;
|
|
|
|
for(int actPaletteId = 0; actPaletteId < paletteLength; actPaletteId++){
|
|
int entry = TechHider.readVarInt(data, i);
|
|
i += TechHider.readVarIntLength(data, i);
|
|
|
|
if(hiddenBlockIds.contains(entry)){
|
|
entry = obfuscateWith;
|
|
}
|
|
buffer.writeBytes(TechHider.writeVarInt(entry));
|
|
}
|
|
}else{
|
|
buffer.writeByte(data[++i]); //Empty palette
|
|
Bukkit.getLogger().log(Level.SEVERE, "Full chunk occured");
|
|
}
|
|
|
|
int dataArrayLength = TechHider.readVarInt(data, i);
|
|
int dataArrayLengthLength = TechHider.readVarIntLength(data, i);
|
|
buffer.writeBytes(data, i, dataArrayLength*8 + dataArrayLengthLength);
|
|
i += dataArrayLengthLength;
|
|
i += dataArrayLength * 8;
|
|
|
|
buffer.writeBytes(data, i, 4096);
|
|
i += 4096; //Skylight (Not in Nether/End!!!) 2048 + Blocklight 2048
|
|
}
|
|
|
|
data = new byte[buffer.readableBytes()];
|
|
buffer.readBytes(data);
|
|
return data;
|
|
}
|
|
}
|