PDC
PlayerRealms developerS Community•2w ago
あお🦀

MAP_CHUNKのpacketを改変して、Y-61にある草ブロックを石にしたい

import:
    ch.njol.skript.Skript

    org.bukkit.Bukkit
    org.bukkit.plugin.Plugin

    com.comphenix.protocol.events.PacketListener
    com.comphenix.protocol.events.ListeningWhitelist
    com.comphenix.protocol.events.ListenerPriority
    com.comphenix.protocol.events.ListenerOptions
    com.comphenix.protocol.events.PacketAdapter
    com.comphenix.protocol.events.PacketEvent
    com.comphenix.protocol.events.PacketContainer
    com.comphenix.protocol.ProtocolLibrary
    com.comphenix.protocol.PacketType
    com.comphenix.protocol.injector.GamePhase
    com.comphenix.protocol.reflect.StructureModifier

    java.lang.Override
    java.util.ArrayList
    java.lang.System

preimport:
  jp.nlaocs.BlockPackets

public class BlockPackets extends PacketAdapter:

    public BlockPackets():
        super[Plugin, ListenerPriority, PacketType[]](Skript.getInstance(), ListenerPriority.NORMAL, [PacketType.Play.Server.MAP_CHUNK as PacketType])
    
    @Override
    public void onPacketSending(PacketEvent event):

        set {_packet} to {_event}.getPacket()

        broadcast "&aPacket: %{_packet}%"

on load:
    set {blockpacketlistener} to new BlockPackets()
    ProtocolLibrary.getProtocolManager().addPacketListener({blockpacketlistener})

on unload:
    ProtocolLibrary.getProtocolManager().removePacketListener({blockpacketlistener})
    clear {blockpacketlistener}
import:
    ch.njol.skript.Skript

    org.bukkit.Bukkit
    org.bukkit.plugin.Plugin

    com.comphenix.protocol.events.PacketListener
    com.comphenix.protocol.events.ListeningWhitelist
    com.comphenix.protocol.events.ListenerPriority
    com.comphenix.protocol.events.ListenerOptions
    com.comphenix.protocol.events.PacketAdapter
    com.comphenix.protocol.events.PacketEvent
    com.comphenix.protocol.events.PacketContainer
    com.comphenix.protocol.ProtocolLibrary
    com.comphenix.protocol.PacketType
    com.comphenix.protocol.injector.GamePhase
    com.comphenix.protocol.reflect.StructureModifier

    java.lang.Override
    java.util.ArrayList
    java.lang.System

preimport:
  jp.nlaocs.BlockPackets

public class BlockPackets extends PacketAdapter:

    public BlockPackets():
        super[Plugin, ListenerPriority, PacketType[]](Skript.getInstance(), ListenerPriority.NORMAL, [PacketType.Play.Server.MAP_CHUNK as PacketType])
    
    @Override
    public void onPacketSending(PacketEvent event):

        set {_packet} to {_event}.getPacket()

        broadcast "&aPacket: %{_packet}%"

on load:
    set {blockpacketlistener} to new BlockPackets()
    ProtocolLibrary.getProtocolManager().addPacketListener({blockpacketlistener})

on unload:
    ProtocolLibrary.getProtocolManager().removePacketListener({blockpacketlistener})
    clear {blockpacketlistener}
送信時にpacketを取得するところまでは行けてます 環境は添付してます
No description
No description
25 Replies
あお🦀
あお🦀•2w ago
PacketContainerからチャンクのブロック、その座標を抽出する方法がわからないです
あお🦀
あお🦀•2w ago
若干近づいたかも
No description
あお🦀
あお🦀•2w ago
このlongと思われる型の数値をどうすればブロックになるのでしょうか…
mirageeeeeeeeeeeeeeeeeeeeeeeeeee
mirageeeeeeeeeeeeeeeeeeeeeeeeeee•2w ago
@egge
何か
何か•2w ago
?
mirageeeeeeeeeeeeeeeeeeeeeeeeeee
mirageeeeeeeeeeeeeeeeeeeeeeeeeee•2w ago
助けてください
何か
何か•2w ago
もうマイクラなんて長いこと触ってないからできるかわからんけど だいたい分かったけど 手動で計算するのはめんどいから 一回SimpleBitStorageにしまいこんで 全部getで取得
何か
何か•2w ago
No description
何か
何か•2w ago
heightmapには256個のentryがあってそれぞれのエントリのビット長がceil(log2(height+1)) heightはワールドの最大の高さ
何か
何か•2w ago
No description
何か
何か•2w ago
そのままデータ入ってるわけじゃないから その意味不明なｌｏｎｇ値から高さ取るためには
何か
何か•2w ago
No description
何か
何か•2w ago
これしないと無理 
   public SimpleBitStorage(int p_184724_, int p_184725_, @Nullable long[] p_184726_) {
      Validate.inclusiveBetween(1L, 32L, (long)p_184724_);
      this.size = p_184725_;
      this.bits = p_184724_;
      this.mask = (1L << p_184724_) - 1L;
      this.valuesPerLong = (char)(64 / p_184724_);
      int i = 3 * (this.valuesPerLong - 1);
      this.divideMul = MAGIC[i + 0];
      this.divideAdd = MAGIC[i + 1];
      this.divideShift = MAGIC[i + 2];
      int j = (p_184725_ + this.valuesPerLong - 1) / this.valuesPerLong;
      if (p_184726_ != null) {
         if (p_184726_.length != j) {
            throw new SimpleBitStorage.InitializationException("Invalid length given for storage, got: " + p_184726_.length + " but expected: " + j);
         }

         this.data = p_184726_;
      } else {
         this.data = new long[j];
      }

   }

---> SimpleBitStorage(bitLength, sizeOfData, dataArray)
   public SimpleBitStorage(int p_184724_, int p_184725_, @Nullable long[] p_184726_) {
      Validate.inclusiveBetween(1L, 32L, (long)p_184724_);
      this.size = p_184725_;
      this.bits = p_184724_;
      this.mask = (1L << p_184724_) - 1L;
      this.valuesPerLong = (char)(64 / p_184724_);
      int i = 3 * (this.valuesPerLong - 1);
      this.divideMul = MAGIC[i + 0];
      this.divideAdd = MAGIC[i + 1];
      this.divideShift = MAGIC[i + 2];
      int j = (p_184725_ + this.valuesPerLong - 1) / this.valuesPerLong;
      if (p_184726_ != null) {
         if (p_184726_.length != j) {
            throw new SimpleBitStorage.InitializationException("Invalid length given for storage, got: " + p_184726_.length + " but expected: " + j);
         }

         this.data = p_184726_;
      } else {
         this.data = new long[j];
      }

   }

---> SimpleBitStorage(bitLength, sizeOfData, dataArray)
heightmapの次に送られるchunk formatのbyte arrayは ここに書いてある通り ワールドの高さによって
何か
何か•2w ago
No description
何か
何か•2w ago
したのchunk sectionの数が変わる 16^3毎にデータ送るからデフォルトの高さ384の場合384/16=24 常にchunk formatは 2bytes block count 16^3(4096)entries palette 4^3(64)entries palette のデータを持ってる データは下から上に向かって 送られてくる heightmapとこのバイト配列でもいいけど
何か
何か•2w ago
No description
何か
何か•2w ago
下に丁寧にブロックごとのデータをまとめたものがあるから こっち使ったほうが楽だとおもいます。 これについていうと、これはheightmapの値でブロックではない。
akon
akon•2w ago
うわ 召喚されてる
何か
何か•2w ago
ブロックのデータは下のbyte arrayに入ってて
何か
何か•2w ago
No description
何か
何か•2w ago
ブロックの数が最初にきて そのあとにブロックの idが並ぶ palette = 4bytes block length array of block ids 上のpaletteに送られてくるのがブロックで下はtile entityだったわ 結局paletteを覗いていくしかない 
import:
 com.comphenix.protocol.events.PacketListener
 com.comphenix.protocol.events.ListeningWhitelist
 com.comphenix.protocol.PacketType
 com.comphenix.protocol.ProtocolLibrary
 com.comphenix.protocol.utility.MinecraftReflection
 com.comphenix.protocol.wrappers.BukkitConverters
 ch.njol.skript.Skript
 net.minecraft.network.PacketDataSerializer
 io.netty.buffer.Unpooled
 java.util.Arrays
 
function packet_sending(proxy: object, e: object):
 #set {_levelChunk} to {_e}.getPacket().getSpecificModifier(MinecraftReflection.getLevelChunkPacketDataClass()).read(0)
 set {_levelChunk} to {_e}.getPacket().getLevelChunkData().read(0)
 set {_buf} to new PacketDataSerializer(Unpooled.wrappedBuffer({_levelChunk}.getBuffer()))
 loop 30 times:
  set {_bc} to {_buf}.readShort()
  #if {_buf}.writerIndex() is {_buf}.readerIndex():
  if {_bc} is 0:
   stop loop
   
  broadcast "%loop-number% BC %{_bc}%"

  #-----BLOCK
  set {_bpe} to {_buf}.readUnsignedByte()
  broadcast "%loop-number% BLOCK_BPE %{_bpe}%"
  if {_bpe} is 0:
   set {_eid} to {_buf}.m()
   broadcast "%loop-number% BLOCK_Single %{_eid}%"
  else if {_bpe} <= 8:
   set {_pdata} to {_buf}.c()
   broadcast "%loop-number% BLOCK_Indirect %{_pdata}%"
  set {_da} to {_buf}.d()
  broadcast "%loop-number% BLOCK_DataArray %Arrays.asList({_da}).size()%"
  
  #-----BIOME
  set {_bpe} to {_buf}.readUnsignedByte()
  broadcast "%loop-number% BIOME_BPE %{_bpe}%"
  if {_bpe} is 0:
   set {_eid} to {_buf}.m()
   broadcast "%loop-number% BIOME_Single %{_eid}%"
  else if {_bpe} <= 3:
   set {_pdata} to {_buf}.c()
   broadcast "%loop-number% BIOME_Indirect %{_pdata}%"
  set {_da} to {_buf}.d()
  broadcast "%loop-number% BIOME_DataArray %{_da}%"
  
 broadcast "%{_buf}.readerIndex()% %{_buf}.writerIndex()%"
import:
 com.comphenix.protocol.events.PacketListener
 com.comphenix.protocol.events.ListeningWhitelist
 com.comphenix.protocol.PacketType
 com.comphenix.protocol.ProtocolLibrary
 com.comphenix.protocol.utility.MinecraftReflection
 com.comphenix.protocol.wrappers.BukkitConverters
 ch.njol.skript.Skript
 net.minecraft.network.PacketDataSerializer
 io.netty.buffer.Unpooled
 java.util.Arrays
 
function packet_sending(proxy: object, e: object):
 #set {_levelChunk} to {_e}.getPacket().getSpecificModifier(MinecraftReflection.getLevelChunkPacketDataClass()).read(0)
 set {_levelChunk} to {_e}.getPacket().getLevelChunkData().read(0)
 set {_buf} to new PacketDataSerializer(Unpooled.wrappedBuffer({_levelChunk}.getBuffer()))
 loop 30 times:
  set {_bc} to {_buf}.readShort()
  #if {_buf}.writerIndex() is {_buf}.readerIndex():
  if {_bc} is 0:
   stop loop
   
  broadcast "%loop-number% BC %{_bc}%"

  #-----BLOCK
  set {_bpe} to {_buf}.readUnsignedByte()
  broadcast "%loop-number% BLOCK_BPE %{_bpe}%"
  if {_bpe} is 0:
   set {_eid} to {_buf}.m()
   broadcast "%loop-number% BLOCK_Single %{_eid}%"
  else if {_bpe} <= 8:
   set {_pdata} to {_buf}.c()
   broadcast "%loop-number% BLOCK_Indirect %{_pdata}%"
  set {_da} to {_buf}.d()
  broadcast "%loop-number% BLOCK_DataArray %Arrays.asList({_da}).size()%"
  
  #-----BIOME
  set {_bpe} to {_buf}.readUnsignedByte()
  broadcast "%loop-number% BIOME_BPE %{_bpe}%"
  if {_bpe} is 0:
   set {_eid} to {_buf}.m()
   broadcast "%loop-number% BIOME_Single %{_eid}%"
  else if {_bpe} <= 3:
   set {_pdata} to {_buf}.c()
   broadcast "%loop-number% BIOME_Indirect %{_pdata}%"
  set {_da} to {_buf}.d()
  broadcast "%loop-number% BIOME_DataArray %{_da}%"
  
 broadcast "%{_buf}.readerIndex()% %{_buf}.writerIndex()%"
function packet_receiving(proxy: object, e: object):
 broadcast "receive %{_e}%"

function sending_wl() :: object:
 return ListeningWhitelist.newBuilder().normal().types(PacketType.Play.Server.MAP_CHUNK).build()

function receiving_wl() :: object:
 return ListeningWhitelist.EMPTY_WHITELIST
 
function plugin() :: object:
 return Skript.getInstance()

command /test:
 trigger:
  if {proxy} is set:
   ProtocolLibrary.getProtocolManager().removePacketListener({proxy})
  set {_funcs::onPacketSending} to function reference "packet_sending"
  set {_funcs::onPacketReceiving} to function reference "packet_receiving"
  set {_funcs::getSendingWhitelist} to function reference "sending_wl"
  set {_funcs::getReceivingWhitelist} to function reference "receiving_wl"
  set {_funcs::getPlugin} to function reference "plugin"
  set {proxy} to proxy of PacketListener from {_funcs::*}
  ProtocolLibrary.getProtocolManager().addPacketListener({proxy})
function packet_receiving(proxy: object, e: object):
 broadcast "receive %{_e}%"

function sending_wl() :: object:
 return ListeningWhitelist.newBuilder().normal().types(PacketType.Play.Server.MAP_CHUNK).build()

function receiving_wl() :: object:
 return ListeningWhitelist.EMPTY_WHITELIST
 
function plugin() :: object:
 return Skript.getInstance()

command /test:
 trigger:
  if {proxy} is set:
   ProtocolLibrary.getProtocolManager().removePacketListener({proxy})
  set {_funcs::onPacketSending} to function reference "packet_sending"
  set {_funcs::onPacketReceiving} to function reference "packet_receiving"
  set {_funcs::getSendingWhitelist} to function reference "sending_wl"
  set {_funcs::getReceivingWhitelist} to function reference "receiving_wl"
  set {_funcs::getPlugin} to function reference "plugin"
  set {proxy} to proxy of PacketListener from {_funcs::*}
  ProtocolLibrary.getProtocolManager().addPacketListener({proxy})
何か
何か•2w ago
No description
何か
何か•2w ago
No description
何か
何か•2w ago
bpe = 4-8 indirectの場合はpalettのインデックスを示す bpe = 15の場合はData ArrayにブロックのIDが入る bpe = 0 Empty 
import:
 com.comphenix.protocol.events.PacketListener
 com.comphenix.protocol.events.ListeningWhitelist
 com.comphenix.protocol.PacketType
 com.comphenix.protocol.ProtocolLibrary
 com.comphenix.protocol.utility.MinecraftReflection
 com.comphenix.protocol.wrappers.BukkitConverters
 ch.njol.skript.Skript
 net.minecraft.network.PacketDataSerializer
 io.netty.buffer.Unpooled
 java.util.Arrays
 java.util.BitSet
 
function packet_sending(proxy: object, e: object):
 set {_levelChunk} to {_e}.getPacket().getLevelChunkData().read(0)
 set {_buf} to new PacketDataSerializer(Unpooled.wrappedBuffer({_levelChunk}.getBuffer()))
 loop 1 times:
  set {_bc} to {_buf}.readShort()
  if {_bc} is 0:
   stop loop
   
  set {_bpe} to {_buf}.readUnsignedByte()
  if {_bpe} is 0:
   set {_eid} to {_buf}.m()
  else if {_bpe} <= 8:
   set {_pdata} to {_buf}.c()
  set {_da} to {_buf}.d()
  set {_bs} to BitSet.valueOf({_da})
  
  if {_bpe} is not 0:
   loop {_bs}.size() / {_bpe} times:
    set {_from} to ((loop-number-2) - 1) * {_bpe}
    set {_to} to loop-number-2 * {_bpe} - 1
    set {_bs2} to {_bs}.get({_from}, {_to})
    set {_v} to {_bs2}.toLongArray()[0]
    if {_v} is none:
     set {_v} to 0
   
    if {_bpe} <= 8:
     set {_bid} to {_pdata}[{_v}]
    else if {_bpe} is 15
     set {_bid} to {_v}
    
    #ここから処理を書く
    
  set {_bpe} to {_buf}.readUnsignedByte()
  if {_bpe} is 0:
   set {_eid} to {_buf}.m()
  else if {_bpe} <= 3:
   set {_pdata} to {_buf}.c()
  set {_da} to {_buf}.d()
import:
 com.comphenix.protocol.events.PacketListener
 com.comphenix.protocol.events.ListeningWhitelist
 com.comphenix.protocol.PacketType
 com.comphenix.protocol.ProtocolLibrary
 com.comphenix.protocol.utility.MinecraftReflection
 com.comphenix.protocol.wrappers.BukkitConverters
 ch.njol.skript.Skript
 net.minecraft.network.PacketDataSerializer
 io.netty.buffer.Unpooled
 java.util.Arrays
 java.util.BitSet
 
function packet_sending(proxy: object, e: object):
 set {_levelChunk} to {_e}.getPacket().getLevelChunkData().read(0)
 set {_buf} to new PacketDataSerializer(Unpooled.wrappedBuffer({_levelChunk}.getBuffer()))
 loop 1 times:
  set {_bc} to {_buf}.readShort()
  if {_bc} is 0:
   stop loop
   
  set {_bpe} to {_buf}.readUnsignedByte()
  if {_bpe} is 0:
   set {_eid} to {_buf}.m()
  else if {_bpe} <= 8:
   set {_pdata} to {_buf}.c()
  set {_da} to {_buf}.d()
  set {_bs} to BitSet.valueOf({_da})
  
  if {_bpe} is not 0:
   loop {_bs}.size() / {_bpe} times:
    set {_from} to ((loop-number-2) - 1) * {_bpe}
    set {_to} to loop-number-2 * {_bpe} - 1
    set {_bs2} to {_bs}.get({_from}, {_to})
    set {_v} to {_bs2}.toLongArray()[0]
    if {_v} is none:
     set {_v} to 0
   
    if {_bpe} <= 8:
     set {_bid} to {_pdata}[{_v}]
    else if {_bpe} is 15
     set {_bid} to {_v}
    
    #ここから処理を書く
    
  set {_bpe} to {_buf}.readUnsignedByte()
  if {_bpe} is 0:
   set {_eid} to {_buf}.m()
  else if {_bpe} <= 3:
   set {_pdata} to {_buf}.c()
  set {_da} to {_buf}.d()
function packet_receiving(proxy: object, e: object):
 broadcast "receive %{_e}%"

function sending_wl() :: object:
 return ListeningWhitelist.newBuilder().normal().types(PacketType.Play.Server.MAP_CHUNK).build()

function receiving_wl() :: object:
 return ListeningWhitelist.EMPTY_WHITELIST
 
function plugin() :: object:
 return Skript.getInstance()

command /test:
 trigger:
  if {proxy} is set:
   ProtocolLibrary.getProtocolManager().removePacketListener({proxy})
  set {_funcs::onPacketSending} to function reference "packet_sending"
  set {_funcs::onPacketReceiving} to function reference "packet_receiving"
  set {_funcs::getSendingWhitelist} to function reference "sending_wl"
  set {_funcs::getReceivingWhitelist} to function reference "receiving_wl"
  set {_funcs::getPlugin} to function reference "plugin"
  set {proxy} to proxy of PacketListener from {_funcs::*}
  ProtocolLibrary.getProtocolManager().addPacketListener({proxy})
function packet_receiving(proxy: object, e: object):
 broadcast "receive %{_e}%"

function sending_wl() :: object:
 return ListeningWhitelist.newBuilder().normal().types(PacketType.Play.Server.MAP_CHUNK).build()

function receiving_wl() :: object:
 return ListeningWhitelist.EMPTY_WHITELIST
 
function plugin() :: object:
 return Skript.getInstance()

command /test:
 trigger:
  if {proxy} is set:
   ProtocolLibrary.getProtocolManager().removePacketListener({proxy})
  set {_funcs::onPacketSending} to function reference "packet_sending"
  set {_funcs::onPacketReceiving} to function reference "packet_receiving"
  set {_funcs::getSendingWhitelist} to function reference "sending_wl"
  set {_funcs::getReceivingWhitelist} to function reference "receiving_wl"
  set {_funcs::getPlugin} to function reference "plugin"
  set {proxy} to proxy of PacketListener from {_funcs::*}
  ProtocolLibrary.getProtocolManager().addPacketListener({proxy})
{_bid} = block id ここで草ブロックか判定して いじれば完了 あとは頑張ってね
あお🦀
あお🦀•2w ago
ありがとうございます いろいろ試してみます！
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