Support TextComponent AST parser and command binary graph AST parser

README.md

@@ -21,17 +21,16 @@ A lightweight minecraft client-side protocol library and related library, includ
 
 ## Implementation details
 
-- [x] **Online Mode Authentication & Encryption**: See [Implement Encryption](docs/implement-encryption.md) 
+- [x] **Online Mode Authentication & Encryption**: See [Implement Encryption](docs/implement-encryption.md)
-- [ ] **Structured `TextComponent` Parser**: Rich Chat Component AST decoder (currently falling back to raw
+- [x] **Structured `TextComponent` Parser**: TextComponent AST decoder (Some packets fallback to Raw NBTCompound)
-  `NBTCompound`).
+- [x] **Command Tree Parser (0x10)**: Full binary graph decoder for brigadier nodes, argument types, and suggestions
-- [ ] **Command Tree Parser (0x10)**: Full binary graph decoder for brigadier nodes, argument types, and suggestions.
 - [ ] **Recipe Book & Recipe Data (0x3F, 0x4A, 0x4B, 0x4C, 0x85)**: Recipe layout declarations and client-side recipe
-  settings.
+  settings
 - [ ] **Chunk & World Data (0x2D)**: Level Chunk Data with Light decoder (Bitsets, Paletted Containers, Direct/Indirect
-  Palettes).
+  Palettes)
-- [ ] **Light Engine Update (0x30)**: Sky & Block light nibble array parser.
+- [ ] **Light Engine Update (0x30)**: Sky & Block light nibble array parser
-- [ ] **Explosion Event Decoder (0x24)**: Knockback vectors and destroyed block offsets array.
+- [ ] **Explosion Event Decoder (0x24)**: Knockback vectors and destroyed block offsets array
-- [ ] **Debug Packets Parsing (0x1A - 0x1E)**: Debug subs, block/entity states, and game performance sample events.
+- [ ] **Debug Packets Parsing (0x1A - 0x1E)**: Debug subs, block/entity states, and game performance sample events
 - [ ] **Particle Parsing**
 - [ ] **Slot Data Parsing**
 

libmc-common/src/commonMain/kotlin/cn/rtast/libmc/crypto/ProtocolContext.kt

@@ -11,7 +11,7 @@ public data class ProtocolContext(
     val rsaEncryptor: RSA1024Encryptor,
     val sha1Hasher: Sha1Hasher,
     val cipherFactory: (sharedKey: ByteArray) -> NetworkCipher,
-    val authProvider: AuthenticationProvider,
+    val authProvider: AuthenticationProvider?,
 )
 
 public class ProtocolContextBuilder(private val onlineMode: Boolean) {
@@ -25,8 +25,9 @@ public class ProtocolContextBuilder(private val onlineMode: Boolean) {
             rsaEncryptor = if (::rsaEncryptor.isInitialized) rsaEncryptor else error("rsaEncryptor is required"),
             sha1Hasher = if (::sha1Hasher.isInitialized) sha1Hasher else error("sha1Hasher is required"),
             cipherFactory = if (::cipherFactory.isInitialized) cipherFactory else error("cipherFactory is required"),
-            authProvider = if (::authProvider.isInitialized) if (onlineMode) authProvider
+            authProvider = if (onlineMode) {
-            else error("authProvider is required") else error("authProvider is required")
+                if (::authProvider.isInitialized) authProvider else error("authProvider is required in online mode")
+            } else if (::authProvider.isInitialized) authProvider else null
         )
 }
 

libmc-protocol/src/commonMain/kotlin/cn/rtast/libmc/protocol/client/MinecraftClient.kt

@@ -16,7 +16,7 @@ import cn.rtast.libmc.protocol.packet.handshake.ServerboundHandshakePacket
 import cn.rtast.libmc.protocol.packet.login.serverbound.ServerboundLoginStartPacket
 import cn.rtast.libmc.protocol.protocol.state.HandshakeIntent
 import cn.rtast.libmc.protocol.protocol.state.ProtocolState
-import cn.rtast.libmc.protocol.session.TransactionIdManager
+import cn.rtast.libmc.protocol.util.TransactionIdManager
 import cn.rtast.libmc.protocol.util.generateOfflineUuid
 import kotlinx.coroutines.*
 import kotlin.coroutines.CoroutineContext

libmc-protocol/src/commonMain/kotlin/cn/rtast/libmc/protocol/event/InternalPacketDispatcher.kt

@@ -35,7 +35,7 @@ import cn.rtast.libmc.protocol.util.generateRandom16Bytes
  */
 public class InternalPacketDispatcher(
     private val client: MinecraftClient,
-    private val authProvider: AuthenticationProvider,
+    private val authProvider: AuthenticationProvider?,
 ) {
     public suspend fun handleIncomingPackets(packet: MinecraftPacket) {
         when (packet) {
@@ -51,7 +51,7 @@ public class InternalPacketDispatcher(
                 val sharedSecret = generateRandom16Bytes()
                 if (client.isOnlineMode) {
                     val serverHash = client.serverIdHasher.hash(packet.serverId, sharedSecret, packet.publicKey)
-                    authProvider.joinServer(
+                    authProvider!!.joinServer(
                         "https://sessionserver.mojang.com/session/minecraft/join",
                         client.accessToken!!,
                         client.uuid.toString().replace("-", ""),

libmc-protocol/src/commonMain/kotlin/cn/rtast/libmc/protocol/packet/configuration/clientbound/ClientboundAddResourcePackPacket.kt

@@ -12,9 +12,9 @@ import cn.rtast.libmc.packet.PacketCodec
 import cn.rtast.libmc.primitives.readMcString
 import cn.rtast.libmc.primitives.readUuid
 import cn.rtast.libmc.primitives.readVarInt
+import cn.rtast.libmc.protocol.protocol.game.chat.TextComponent
+import cn.rtast.libmc.protocol.protocol.game.chat.readTextComponent
 import cn.rtast.libmc.stream.BytesBuffer
-import cn.rtast.libmc.nbt.NBTCompound
-import cn.rtast.libmc.protocol.protocol.util.readNetworkNBTCompound
 import kotlin.uuid.Uuid
 
 public data class ClientboundAddResourcePackPacket(
@@ -22,7 +22,7 @@ public data class ClientboundAddResourcePackPacket(
     val url: String,
     val hash: String,
     val forced: Boolean,
-    val prompt: NBTCompound,
+    val prompt: TextComponent,
 ) : MinecraftPacket {
     internal companion object Codec : PacketCodec<ClientboundAddResourcePackPacket> {
         override suspend fun encode(buffer: BytesBuffer, value: ClientboundAddResourcePackPacket) {}
@@ -32,7 +32,7 @@ public data class ClientboundAddResourcePackPacket(
             val hash = buffer.readMcString()
             val forced = buffer.readBoolean()
             buffer.readVarInt()  // ?
-            val prompt = buffer.readNetworkNBTCompound()  // ?
+            val prompt = buffer.readTextComponent()  // ?
             return ClientboundAddResourcePackPacket(uuid, url, hash, forced, prompt)
         }
     }

libmc-protocol/src/commonMain/kotlin/cn/rtast/libmc/protocol/packet/configuration/clientbound/ClientboundDisconnectConfigurationPacket.kt

@@ -7,17 +7,17 @@
 
 package cn.rtast.libmc.protocol.packet.configuration.clientbound
 
-import cn.rtast.libmc.stream.BytesBuffer
 import cn.rtast.libmc.packet.MinecraftPacket
 import cn.rtast.libmc.packet.PacketCodec
-import cn.rtast.libmc.nbt.NBTCompound
+import cn.rtast.libmc.protocol.protocol.game.chat.TextComponent
-import cn.rtast.libmc.protocol.protocol.util.readNetworkNBTCompound
+import cn.rtast.libmc.protocol.protocol.game.chat.readTextComponent
+import cn.rtast.libmc.stream.BytesBuffer
 
-public data class ClientboundDisconnectConfigurationPacket(val reason: NBTCompound) : MinecraftPacket {
+public data class ClientboundDisconnectConfigurationPacket(val reason: TextComponent) : MinecraftPacket {
     internal companion object Codec : PacketCodec<ClientboundDisconnectConfigurationPacket> {
         override suspend fun encode(buffer: BytesBuffer, value: ClientboundDisconnectConfigurationPacket) {}
         override suspend fun decode(buffer: BytesBuffer): ClientboundDisconnectConfigurationPacket {
-            return ClientboundDisconnectConfigurationPacket(reason = buffer.readNetworkNBTCompound())
+            return ClientboundDisconnectConfigurationPacket(reason = buffer.readTextComponent())
         }
     }
 }

libmc-protocol/src/commonMain/kotlin/cn/rtast/libmc/protocol/packet/configuration/clientbound/ClientboundServerLinksPacket.kt

@@ -11,7 +11,7 @@ import cn.rtast.libmc.stream.BytesBuffer
 import cn.rtast.libmc.packet.MinecraftPacket
 import cn.rtast.libmc.packet.PacketCodec
 import cn.rtast.libmc.primitives.readVarInt
-import cn.rtast.libmc.protocol.registry.report.ServerLink
+import cn.rtast.libmc.protocol.protocol.game.registry.report.ServerLink
 
 public data class ClientboundServerLinksPacket(val links: List<ServerLink>) : MinecraftPacket {
     internal companion object Codec : PacketCodec<ClientboundServerLinksPacket> {

libmc-protocol/src/commonMain/kotlin/cn/rtast/libmc/protocol/packet/login/clientbound/ClientboundDisconnectLoginPacket.kt

@@ -7,17 +7,17 @@
 
 package cn.rtast.libmc.protocol.packet.login.clientbound
 
-import cn.rtast.libmc.stream.BytesBuffer
 import cn.rtast.libmc.packet.MinecraftPacket
 import cn.rtast.libmc.packet.PacketCodec
-import cn.rtast.libmc.nbt.NBTCompound
+import cn.rtast.libmc.protocol.protocol.game.chat.TextComponent
-import cn.rtast.libmc.protocol.protocol.util.readNetworkNBTCompound
+import cn.rtast.libmc.protocol.protocol.game.chat.readTextComponent
+import cn.rtast.libmc.stream.BytesBuffer
 
-public data class ClientboundDisconnectLoginPacket(val reason: NBTCompound) : MinecraftPacket {
+public data class ClientboundDisconnectLoginPacket(val reason: TextComponent) : MinecraftPacket {
     internal companion object Codec : PacketCodec<ClientboundDisconnectLoginPacket> {
         override suspend fun encode(buffer: BytesBuffer, value: ClientboundDisconnectLoginPacket) {}
         override suspend fun decode(buffer: BytesBuffer): ClientboundDisconnectLoginPacket {
-            return ClientboundDisconnectLoginPacket(reason = buffer.readNetworkNBTCompound())
+            return ClientboundDisconnectLoginPacket(reason = buffer.readTextComponent())
         }
     }
 }

libmc-protocol/src/commonMain/kotlin/cn/rtast/libmc/protocol/packet/login/clientbound/ClientboundLoginSuccessPacket.kt

@@ -11,7 +11,7 @@ import cn.rtast.libmc.stream.BytesBuffer
 import cn.rtast.libmc.packet.MinecraftPacket
 import cn.rtast.libmc.packet.PacketCodec
 import cn.rtast.libmc.primitives.readUuid
-import cn.rtast.libmc.protocol.session.GameProfile
+import cn.rtast.libmc.protocol.protocol.game.session.GameProfile
 import kotlin.uuid.Uuid
 
 public data class ClientboundLoginSuccessPacket(val gameProfile: GameProfile, val sessionId: Uuid) :

libmc-protocol/src/commonMain/kotlin/cn/rtast/libmc/protocol/packet/play/clientbound/ClientboundBossEventPacket.kt

@@ -7,7 +7,6 @@
 
 package cn.rtast.libmc.protocol.packet.play.clientbound
 
-import cn.rtast.libmc.stream.BytesBuffer
 import cn.rtast.libmc.packet.MinecraftPacket
 import cn.rtast.libmc.packet.PacketCodec
 import cn.rtast.libmc.primitives.readUuid
@@ -16,7 +15,8 @@ import cn.rtast.libmc.protocol.protocol.game.bossbar.BossBarAction
 import cn.rtast.libmc.protocol.protocol.game.bossbar.BossBarColor
 import cn.rtast.libmc.protocol.protocol.game.bossbar.BossBarDivision
 import cn.rtast.libmc.protocol.protocol.game.bossbar.BossBarFlags
-import cn.rtast.libmc.protocol.protocol.util.readNetworkNBTCompound
+import cn.rtast.libmc.protocol.protocol.game.chat.readTextComponent
+import cn.rtast.libmc.stream.BytesBuffer
 import kotlin.uuid.Uuid
 
 public data class ClientboundBossEventPacket(val uuid: Uuid, val action: BossBarAction) : MinecraftPacket {
@@ -26,7 +26,7 @@ public data class ClientboundBossEventPacket(val uuid: Uuid, val action: BossBar
             val uuid = buffer.readUuid()
             val action = when (val actionId = buffer.readVarInt()) {
                 BossBarAction.ADD_ID -> {
-                    val title = buffer.readNetworkNBTCompound()
+                    val title = buffer.readTextComponent()
                     val health = buffer.readFloat()
                     val color = BossBarColor.fromID(buffer.readVarInt())
                     val division = BossBarDivision.fromID(buffer.readVarInt())
@@ -35,7 +35,7 @@ public data class ClientboundBossEventPacket(val uuid: Uuid, val action: BossBar
                 }
 
                 BossBarAction.REMOVE_ID -> BossBarAction.Remove
-                BossBarAction.UPDATE_TITLE_ID -> BossBarAction.UpdateTitle(buffer.readNetworkNBTCompound())
+                BossBarAction.UPDATE_TITLE_ID -> BossBarAction.UpdateTitle(buffer.readTextComponent())
                 BossBarAction.UPDATE_STYLE_ID -> {
                     val color = BossBarColor.fromID(buffer.readVarInt())
                     val division = BossBarDivision.fromID(buffer.readVarInt())
@@ -46,6 +46,8 @@ public data class ClientboundBossEventPacket(val uuid: Uuid, val action: BossBar
                     BossBarAction.UpdateFlags(BossBarFlags.fromBitmask(buffer.readByte().toInt() and 0xFF))
                 }
 
+                BossBarAction.UPDATE_HEALTH_ID -> BossBarAction.UpdateHealth(buffer.readFloat())
+
                 else -> throw IllegalArgumentException("Unknown action $actionId")
             }
             return ClientboundBossEventPacket(uuid, action)

libmc-protocol/src/commonMain/kotlin/cn/rtast/libmc/protocol/packet/play/clientbound/ClientboundChangeDifficultyPacket.kt

@@ -10,7 +10,7 @@ package cn.rtast.libmc.protocol.packet.play.clientbound
 import cn.rtast.libmc.stream.BytesBuffer
 import cn.rtast.libmc.packet.MinecraftPacket
 import cn.rtast.libmc.packet.PacketCodec
-import cn.rtast.libmc.protocol.registry.GameDifficulty
+import cn.rtast.libmc.protocol.protocol.game.registry.GameDifficulty
 
 public data class ClientboundChangeDifficultyPacket(val difficulty: GameDifficulty, val locked: Boolean) :
     MinecraftPacket {

libmc-protocol/src/commonMain/kotlin/cn/rtast/libmc/protocol/packet/play/clientbound/ClientboundCommandSuggestionsPacket.kt

@@ -11,11 +11,9 @@ import cn.rtast.libmc.packet.MinecraftPacket
 import cn.rtast.libmc.packet.PacketCodec
 import cn.rtast.libmc.primitives.readMcString
 import cn.rtast.libmc.primitives.readVarInt
-import cn.rtast.libmc.primitives.writeMcString
+import cn.rtast.libmc.protocol.protocol.game.chat.TextComponent
+import cn.rtast.libmc.protocol.protocol.game.chat.readTextComponent
 import cn.rtast.libmc.stream.BytesBuffer
-import cn.rtast.libmc.nbt.NBTCompound
-import cn.rtast.libmc.protocol.protocol.util.readNetworkNBTCompound
-import cn.rtast.libmc.protocol.protocol.util.writeNetworkNBTCompound
 
 public data class ClientboundCommandSuggestionsPacket(
     val id: Int,
@@ -23,18 +21,13 @@ public data class ClientboundCommandSuggestionsPacket(
     val length: Int,
     val matches: List<CommandSuggestionMatch>,
 ) : MinecraftPacket {
-    public data class CommandSuggestionMatch(val match: String, val tooltip: NBTCompound?) {
+    public data class CommandSuggestionMatch(val match: String, val tooltip: TextComponent?) {
         internal companion object Codec : PacketCodec<CommandSuggestionMatch> {
-            override suspend fun encode(buffer: BytesBuffer, value: CommandSuggestionMatch) {
+            override suspend fun encode(buffer: BytesBuffer, value: CommandSuggestionMatch) {}
-                buffer.writeMcString(value.match)
-                buffer.writeBoolean(value.tooltip != null)
-                if (value.tooltip != null) buffer.writeNetworkNBTCompound(value.tooltip)
-            }
-
             override suspend fun decode(buffer: BytesBuffer): CommandSuggestionMatch {
                 val match = buffer.readMcString()
                 val hasTooltip = buffer.readBoolean()
-                val tooltip = if (hasTooltip) buffer.readNetworkNBTCompound() else null
+                val tooltip = if (hasTooltip) buffer.readTextComponent() else null
                 return CommandSuggestionMatch(match, tooltip)
             }
         }

libmc-protocol/src/commonMain/kotlin/cn/rtast/libmc/protocol/packet/play/clientbound/ClientboundCommandsPacket.kt

@@ -0,0 +1,26 @@
+/*
+ * Copyright © 2026 RTAkland
+ * Author: RTAkland
+ * Date: 2026/9/7
+ */
+
+
+package cn.rtast.libmc.protocol.packet.play.clientbound
+
+import cn.rtast.libmc.packet.MinecraftPacket
+import cn.rtast.libmc.packet.PacketCodec
+import cn.rtast.libmc.primitives.readPrefixed
+import cn.rtast.libmc.primitives.readVarInt
+import cn.rtast.libmc.protocol.protocol.game.command.CommandNode
+import cn.rtast.libmc.stream.BytesBuffer
+
+public data class ClientboundCommandsPacket(val nodes: List<CommandNode>, val rootIndex: Int) : MinecraftPacket {
+    internal companion object Codec : PacketCodec<ClientboundCommandsPacket> {
+        override suspend fun encode(buffer: BytesBuffer, value: ClientboundCommandsPacket) {}
+        override suspend fun decode(buffer: BytesBuffer): ClientboundCommandsPacket {
+            val nodes = buffer.readPrefixed { CommandNode.decode(buffer) }
+            val rootIndex = buffer.readVarInt()
+            return ClientboundCommandsPacket(nodes, rootIndex)
+        }
+    }
+}

libmc-protocol/src/commonMain/kotlin/cn/rtast/libmc/protocol/packet/play/clientbound/ClientboundDisconnectPlayPacket.kt

@@ -7,17 +7,17 @@
 
 package cn.rtast.libmc.protocol.packet.play.clientbound
 
-import cn.rtast.libmc.stream.BytesBuffer
 import cn.rtast.libmc.packet.MinecraftPacket
 import cn.rtast.libmc.packet.PacketCodec
-import cn.rtast.libmc.nbt.NBTCompound
+import cn.rtast.libmc.protocol.protocol.game.chat.TextComponent
-import cn.rtast.libmc.protocol.protocol.util.readNetworkNBTCompound
+import cn.rtast.libmc.protocol.protocol.game.chat.readTextComponent
+import cn.rtast.libmc.stream.BytesBuffer
 
-public data class ClientboundDisconnectPlayPacket(val reason: NBTCompound) : MinecraftPacket {
+public data class ClientboundDisconnectPlayPacket(val reason: TextComponent) : MinecraftPacket {
     internal companion object Codec : PacketCodec<ClientboundDisconnectPlayPacket> {
         override suspend fun encode(buffer: BytesBuffer, value: ClientboundDisconnectPlayPacket) {}
         override suspend fun decode(buffer: BytesBuffer): ClientboundDisconnectPlayPacket {
-            return ClientboundDisconnectPlayPacket(reason = buffer.readNetworkNBTCompound())
+            return ClientboundDisconnectPlayPacket(reason = buffer.readTextComponent())
         }
     }
 }

libmc-protocol/src/commonMain/kotlin/cn/rtast/libmc/protocol/packet/play/clientbound/ClientboundDisguisedChatMessagePacket.kt

@@ -12,25 +12,25 @@ import cn.rtast.libmc.packet.PacketCodec
 import cn.rtast.libmc.primitives.IdOrX
 import cn.rtast.libmc.primitives.readIdOrX
 import cn.rtast.libmc.primitives.readOptional
-import cn.rtast.libmc.stream.BytesBuffer
-import cn.rtast.libmc.nbt.NBTCompound
 import cn.rtast.libmc.protocol.protocol.game.chat.InlineChatType
+import cn.rtast.libmc.protocol.protocol.game.chat.TextComponent
 import cn.rtast.libmc.protocol.protocol.game.chat.readInlineChatType
-import cn.rtast.libmc.protocol.protocol.util.readNetworkNBTCompound
+import cn.rtast.libmc.protocol.protocol.game.chat.readTextComponent
+import cn.rtast.libmc.stream.BytesBuffer
 
 public data class ClientboundDisguisedChatMessagePacket(
-    val message: NBTCompound,
+    val message: TextComponent,
     val chatType: IdOrX<InlineChatType>,
-    val senderName: NBTCompound,
+    val senderName: TextComponent,
-    val targetName: NBTCompound?,
+    val targetName: TextComponent?,
 ) : MinecraftPacket {
     internal companion object Codec : PacketCodec<ClientboundDisguisedChatMessagePacket> {
         override suspend fun encode(buffer: BytesBuffer, value: ClientboundDisguisedChatMessagePacket) {}
         override suspend fun decode(buffer: BytesBuffer): ClientboundDisguisedChatMessagePacket {
-            val message = buffer.readNetworkNBTCompound()
+            val message = buffer.readTextComponent()
             val chatType = buffer.readIdOrX { readInlineChatType() }
-            val senderName = buffer.readNetworkNBTCompound()
+            val senderName = buffer.readTextComponent()
-            val targetName = buffer.readOptional { readNetworkNBTCompound() }
+            val targetName = buffer.readOptional { readTextComponent() }
             return ClientboundDisguisedChatMessagePacket(message, chatType, senderName, targetName)
         }
     }

libmc-protocol/src/commonMain/kotlin/cn/rtast/libmc/protocol/packet/play/clientbound/ClientboundOpenScreenPacket.kt

@@ -7,24 +7,24 @@
 
 package cn.rtast.libmc.protocol.packet.play.clientbound
 
-import cn.rtast.libmc.stream.BytesBuffer
-import cn.rtast.libmc.packet.PacketCodec
 import cn.rtast.libmc.packet.MinecraftPacket
+import cn.rtast.libmc.packet.PacketCodec
 import cn.rtast.libmc.primitives.readVarInt
-import cn.rtast.libmc.nbt.NBTCompound
+import cn.rtast.libmc.protocol.protocol.game.chat.TextComponent
-import cn.rtast.libmc.protocol.protocol.util.readNetworkNBTCompound
+import cn.rtast.libmc.protocol.protocol.game.chat.readTextComponent
+import cn.rtast.libmc.stream.BytesBuffer
 
 public data class ClientboundOpenScreenPacket(
     val windowId: Int,
     val windowType: Int,
-    val title: NBTCompound,
+    val title: TextComponent,
 ) : MinecraftPacket {
     internal companion object Codec : PacketCodec<ClientboundOpenScreenPacket> {
         override suspend fun encode(buffer: BytesBuffer, value: ClientboundOpenScreenPacket) {}
         override suspend fun decode(buffer: BytesBuffer): ClientboundOpenScreenPacket {
             val windowId = buffer.readVarInt()
             val windowType = buffer.readVarInt()
-            val title = buffer.readNetworkNBTCompound()
+            val title = buffer.readTextComponent()
             return ClientboundOpenScreenPacket(windowId, windowType, title)
         }
     }

libmc-protocol/src/commonMain/kotlin/cn/rtast/libmc/protocol/packet/play/clientbound/ClientboundPlayerChatMessagePacket.kt

@@ -7,14 +7,14 @@
 
 package cn.rtast.libmc.protocol.packet.play.clientbound
 
-import cn.rtast.libmc.stream.BytesBuffer
 import cn.rtast.libmc.packet.MinecraftPacket
 import cn.rtast.libmc.packet.PacketCodec
 import cn.rtast.libmc.primitives.readMcString
 import cn.rtast.libmc.primitives.readUuid
 import cn.rtast.libmc.primitives.readVarInt
-import cn.rtast.libmc.nbt.NBTCompound
+import cn.rtast.libmc.protocol.protocol.game.chat.TextComponent
-import cn.rtast.libmc.protocol.protocol.util.readNetworkNBTCompound
+import cn.rtast.libmc.protocol.protocol.game.chat.readTextComponent
+import cn.rtast.libmc.stream.BytesBuffer
 import kotlin.uuid.Uuid
 
 /**
@@ -29,12 +29,12 @@ public data class ClientboundPlayerChatMessagePacket(
     val timestamp: Long,
     val salt: Long,
     val previousMessages: List<PreviousMessageEntry>,
-    val unsignedContent: NBTCompound?,
+    val unsignedContent: TextComponent?,
     val filterType: ChatFilterType,
     val filterMaskBits: LongArray?,
     val chatType: Int,
-    val senderName: NBTCompound,
+    val senderName: TextComponent,
-    val targetName: NBTCompound?,
+    val targetName: TextComponent?,
 ) : MinecraftPacket {
     public enum class ChatFilterType(public val id: Int) {
         PASS_THROUGH(0),
@@ -90,7 +90,7 @@ public data class ClientboundPlayerChatMessagePacket(
             val prevMessages = List(prevMessageCount) { PreviousMessageEntry.decode(buffer) }
 
             val hasUnsignedContent = buffer.readBoolean()
-            val unsignedContent = if (hasUnsignedContent) buffer.readNetworkNBTCompound() else null  // ?
+            val unsignedContent = if (hasUnsignedContent) buffer.readTextComponent() else null  // ?
 
             val filterTypeId = buffer.readVarInt()
             val filterType = ChatFilterType.fromID(filterTypeId)
@@ -101,10 +101,10 @@ public data class ClientboundPlayerChatMessagePacket(
             } else null
 
             val chatType = buffer.readVarInt()
-            val senderName = buffer.readNetworkNBTCompound() // ?
+            val senderName = buffer.readTextComponent() // ?
 
             val hasTargetName = buffer.readBoolean()
-            val targetName = if (hasTargetName) buffer.readNetworkNBTCompound() else null // ?
+            val targetName = if (hasTargetName) buffer.readTextComponent() else null // ?
             return ClientboundPlayerChatMessagePacket(
                 globalIndex, sender, index,
                 messageSignature, message,

libmc-protocol/src/commonMain/kotlin/cn/rtast/libmc/protocol/packet/play/clientbound/ClientboundPlayerCombatDeathPacket.kt

@@ -7,19 +7,19 @@
 
 package cn.rtast.libmc.protocol.packet.play.clientbound
 
-import cn.rtast.libmc.stream.BytesBuffer
-import cn.rtast.libmc.packet.PacketCodec
 import cn.rtast.libmc.packet.MinecraftPacket
+import cn.rtast.libmc.packet.PacketCodec
 import cn.rtast.libmc.primitives.readVarInt
-import cn.rtast.libmc.nbt.NBTCompound
+import cn.rtast.libmc.protocol.protocol.game.chat.TextComponent
-import cn.rtast.libmc.protocol.protocol.util.readNetworkNBTCompound
+import cn.rtast.libmc.protocol.protocol.game.chat.readTextComponent
+import cn.rtast.libmc.stream.BytesBuffer
 
-public data class ClientboundPlayerCombatDeathPacket(val playerId: Int, val message: NBTCompound) : MinecraftPacket {
+public data class ClientboundPlayerCombatDeathPacket(val playerId: Int, val message: TextComponent) : MinecraftPacket {
     internal companion object Codec : PacketCodec<ClientboundPlayerCombatDeathPacket> {
         override suspend fun encode(buffer: BytesBuffer, value: ClientboundPlayerCombatDeathPacket) {}
         override suspend fun decode(buffer: BytesBuffer): ClientboundPlayerCombatDeathPacket {
             val playerId = buffer.readVarInt()
-            val message = buffer.readNetworkNBTCompound()
+            val message = buffer.readTextComponent()
             return ClientboundPlayerCombatDeathPacket(playerId, message)
         }
     }

libmc-protocol/src/commonMain/kotlin/cn/rtast/libmc/protocol/packet/play/clientbound/ClientboundServerDataPacket.kt

@@ -7,19 +7,19 @@
 
 package cn.rtast.libmc.protocol.packet.play.clientbound
 
-import cn.rtast.libmc.stream.BytesBuffer
-import cn.rtast.libmc.packet.PacketCodec
 import cn.rtast.libmc.packet.MinecraftPacket
+import cn.rtast.libmc.packet.PacketCodec
 import cn.rtast.libmc.primitives.readOptional
 import cn.rtast.libmc.primitives.readVarInt
-import cn.rtast.libmc.nbt.NBTCompound
+import cn.rtast.libmc.protocol.protocol.game.chat.TextComponent
-import cn.rtast.libmc.protocol.protocol.util.readNetworkNBTCompound
+import cn.rtast.libmc.protocol.protocol.game.chat.readTextComponent
+import cn.rtast.libmc.stream.BytesBuffer
 
-public data class ClientboundServerDataPacket(val motd: NBTCompound, val icon: ByteArray?) : MinecraftPacket {
+public data class ClientboundServerDataPacket(val motd: TextComponent, val icon: ByteArray?) : MinecraftPacket {
     internal companion object Codec : PacketCodec<ClientboundServerDataPacket> {
         override suspend fun encode(buffer: BytesBuffer, value: ClientboundServerDataPacket) {}
         override suspend fun decode(buffer: BytesBuffer): ClientboundServerDataPacket {
-            val motd = buffer.readNetworkNBTCompound()
+            val motd = buffer.readTextComponent()
             val icon = buffer.readOptional { val length = readVarInt(); readBytes(length) }
             return ClientboundServerDataPacket(motd, icon)
         }

libmc-protocol/src/commonMain/kotlin/cn/rtast/libmc/protocol/packet/play/clientbound/ClientboundSetActionBarTextPacket.kt

@@ -7,17 +7,17 @@
 
 package cn.rtast.libmc.protocol.packet.play.clientbound
 
-import cn.rtast.libmc.stream.BytesBuffer
-import cn.rtast.libmc.packet.PacketCodec
 import cn.rtast.libmc.packet.MinecraftPacket
-import cn.rtast.libmc.nbt.NBTCompound
+import cn.rtast.libmc.packet.PacketCodec
-import cn.rtast.libmc.protocol.protocol.util.readNetworkNBTCompound
+import cn.rtast.libmc.protocol.protocol.game.chat.TextComponent
+import cn.rtast.libmc.protocol.protocol.game.chat.readTextComponent
+import cn.rtast.libmc.stream.BytesBuffer
 
-public data class ClientboundSetActionBarTextPacket(val text: NBTCompound) : MinecraftPacket {
+public data class ClientboundSetActionBarTextPacket(val text: TextComponent) : MinecraftPacket {
     internal companion object Codec : PacketCodec<ClientboundSetActionBarTextPacket> {
         override suspend fun encode(buffer: BytesBuffer, value: ClientboundSetActionBarTextPacket) {}
         override suspend fun decode(buffer: BytesBuffer): ClientboundSetActionBarTextPacket {
-            return ClientboundSetActionBarTextPacket(buffer.readNetworkNBTCompound())
+            return ClientboundSetActionBarTextPacket(buffer.readTextComponent())
         }
     }
 }

libmc-protocol/src/commonMain/kotlin/cn/rtast/libmc/protocol/packet/play/clientbound/ClientboundSetSubtitleTextPacket.kt

@@ -7,17 +7,17 @@
 
 package cn.rtast.libmc.protocol.packet.play.clientbound
 
-import cn.rtast.libmc.stream.BytesBuffer
-import cn.rtast.libmc.packet.PacketCodec
 import cn.rtast.libmc.packet.MinecraftPacket
-import cn.rtast.libmc.nbt.NBTCompound
+import cn.rtast.libmc.packet.PacketCodec
-import cn.rtast.libmc.protocol.protocol.util.readNetworkNBTCompound
+import cn.rtast.libmc.protocol.protocol.game.chat.TextComponent
+import cn.rtast.libmc.protocol.protocol.game.chat.readTextComponent
+import cn.rtast.libmc.stream.BytesBuffer
 
-public data class ClientboundSetSubtitleTextPacket(val subTitleText: NBTCompound) : MinecraftPacket {
+public data class ClientboundSetSubtitleTextPacket(val subTitleText: TextComponent) : MinecraftPacket {
     internal companion object Codec : PacketCodec<ClientboundSetSubtitleTextPacket> {
         override suspend fun encode(buffer: BytesBuffer, value: ClientboundSetSubtitleTextPacket) {}
         override suspend fun decode(buffer: BytesBuffer): ClientboundSetSubtitleTextPacket {
-            return ClientboundSetSubtitleTextPacket(buffer.readNetworkNBTCompound())
+            return ClientboundSetSubtitleTextPacket(buffer.readTextComponent())
         }
     }
 }

libmc-protocol/src/commonMain/kotlin/cn/rtast/libmc/protocol/packet/play/clientbound/ClientboundSetTabListHeaderAndFooterPacket.kt

@@ -7,19 +7,19 @@
 
 package cn.rtast.libmc.protocol.packet.play.clientbound
 
-import cn.rtast.libmc.stream.BytesBuffer
-import cn.rtast.libmc.packet.PacketCodec
 import cn.rtast.libmc.packet.MinecraftPacket
-import cn.rtast.libmc.nbt.NBTCompound
+import cn.rtast.libmc.packet.PacketCodec
-import cn.rtast.libmc.protocol.protocol.util.readNetworkNBTCompound
+import cn.rtast.libmc.protocol.protocol.game.chat.TextComponent
+import cn.rtast.libmc.protocol.protocol.game.chat.readTextComponent
+import cn.rtast.libmc.stream.BytesBuffer
 
-public data class ClientboundSetTabListHeaderAndFooterPacket(val header: NBTCompound, val footer: NBTCompound) :
+public data class ClientboundSetTabListHeaderAndFooterPacket(val header: TextComponent, val footer: TextComponent) :
     MinecraftPacket {
     internal companion object Codec : PacketCodec<ClientboundSetTabListHeaderAndFooterPacket> {
         override suspend fun encode(buffer: BytesBuffer, value: ClientboundSetTabListHeaderAndFooterPacket) {}
         override suspend fun decode(buffer: BytesBuffer): ClientboundSetTabListHeaderAndFooterPacket {
-            val header = buffer.readNetworkNBTCompound()
+            val header = buffer.readTextComponent()
-            val footer = buffer.readNetworkNBTCompound()
+            val footer = buffer.readTextComponent()
             return ClientboundSetTabListHeaderAndFooterPacket(header, footer)
         }
     }

libmc-protocol/src/commonMain/kotlin/cn/rtast/libmc/protocol/packet/play/clientbound/ClientboundSetTitleTextPacket.kt

@@ -7,17 +7,17 @@
 
 package cn.rtast.libmc.protocol.packet.play.clientbound
 
-import cn.rtast.libmc.stream.BytesBuffer
-import cn.rtast.libmc.packet.PacketCodec
 import cn.rtast.libmc.packet.MinecraftPacket
-import cn.rtast.libmc.nbt.NBTCompound
+import cn.rtast.libmc.packet.PacketCodec
-import cn.rtast.libmc.protocol.protocol.util.readNetworkNBTCompound
+import cn.rtast.libmc.protocol.protocol.game.chat.TextComponent
+import cn.rtast.libmc.protocol.protocol.game.chat.readTextComponent
+import cn.rtast.libmc.stream.BytesBuffer
 
-public data class ClientboundSetTitleTextPacket(val text: NBTCompound) : MinecraftPacket {
+public data class ClientboundSetTitleTextPacket(val text: TextComponent) : MinecraftPacket {
     internal companion object Codec : PacketCodec<ClientboundSetTitleTextPacket> {
         override suspend fun encode(buffer: BytesBuffer, value: ClientboundSetTitleTextPacket) {}
         override suspend fun decode(buffer: BytesBuffer): ClientboundSetTitleTextPacket {
-            return ClientboundSetTitleTextPacket(buffer.readNetworkNBTCompound())
+            return ClientboundSetTitleTextPacket(buffer.readTextComponent())
         }
     }
 }

libmc-protocol/src/commonMain/kotlin/cn/rtast/libmc/protocol/packet/play/clientbound/ClientboundSystemChatMessagePacket.kt

@@ -7,18 +7,18 @@
 
 package cn.rtast.libmc.protocol.packet.play.clientbound
 
-import cn.rtast.libmc.stream.BytesBuffer
 import cn.rtast.libmc.packet.MinecraftPacket
 import cn.rtast.libmc.packet.PacketCodec
-import cn.rtast.libmc.nbt.NBTCompound
+import cn.rtast.libmc.protocol.protocol.game.chat.TextComponent
-import cn.rtast.libmc.protocol.protocol.util.readNetworkNBTCompound
+import cn.rtast.libmc.protocol.protocol.game.chat.readTextComponent
+import cn.rtast.libmc.stream.BytesBuffer
 
-public data class ClientboundSystemChatMessagePacket(val content: NBTCompound, val overlay: Boolean) :
+public data class ClientboundSystemChatMessagePacket(val content: TextComponent, val overlay: Boolean) :
     MinecraftPacket {
     internal companion object Codec : PacketCodec<ClientboundSystemChatMessagePacket> {
         override suspend fun encode(buffer: BytesBuffer, value: ClientboundSystemChatMessagePacket) {}
         override suspend fun decode(buffer: BytesBuffer): ClientboundSystemChatMessagePacket {
-            val content = buffer.readNetworkNBTCompound()
+            val content = buffer.readTextComponent()
             val overlay = buffer.readBoolean()
             return ClientboundSystemChatMessagePacket(content, overlay)
         }

libmc-protocol/src/commonMain/kotlin/cn/rtast/libmc/protocol/packet/play/clientbound/ClientboundTestInstanceBlockStatusPacket.kt

@@ -7,15 +7,15 @@
 
 package cn.rtast.libmc.protocol.packet.play.clientbound
 
-import cn.rtast.libmc.stream.BytesBuffer
-import cn.rtast.libmc.packet.PacketCodec
 import cn.rtast.libmc.packet.MinecraftPacket
+import cn.rtast.libmc.packet.PacketCodec
 import cn.rtast.libmc.primitives.readOptional
-import cn.rtast.libmc.nbt.NBTCompound
+import cn.rtast.libmc.protocol.protocol.game.chat.TextComponent
-import cn.rtast.libmc.protocol.protocol.util.readNetworkNBTCompound
+import cn.rtast.libmc.protocol.protocol.game.chat.readTextComponent
+import cn.rtast.libmc.stream.BytesBuffer
 
 public data class ClientboundTestInstanceBlockStatusPacket(
-    val status: NBTCompound,
+    val status: TextComponent,
     val hasSize: Boolean,
     val sizeX: Double?,
     val sizeY: Double?,
@@ -24,7 +24,7 @@ public data class ClientboundTestInstanceBlockStatusPacket(
     internal companion object Codec : PacketCodec<ClientboundTestInstanceBlockStatusPacket> {
         override suspend fun encode(buffer: BytesBuffer, value: ClientboundTestInstanceBlockStatusPacket) {}
         override suspend fun decode(buffer: BytesBuffer): ClientboundTestInstanceBlockStatusPacket {
-            val status = buffer.readNetworkNBTCompound()
+            val status = buffer.readTextComponent()
             val hasSize = buffer.readBoolean()
             val sizeX = buffer.readOptional { readDouble() }  // ?
             val sizeY = buffer.readOptional { readDouble() }  // ?

libmc-protocol/src/commonMain/kotlin/cn/rtast/libmc/protocol/packet/play/clientbound/ClientboundUpdateObjectivePacket.kt

@@ -7,16 +7,17 @@
 
 package cn.rtast.libmc.protocol.packet.play.clientbound
 
-import cn.rtast.libmc.stream.BytesBuffer
+import cn.rtast.libmc.nbt.NBTTag
-import cn.rtast.libmc.packet.PacketCodec
 import cn.rtast.libmc.packet.MinecraftPacket
+import cn.rtast.libmc.packet.PacketCodec
 import cn.rtast.libmc.primitives.readMcString
 import cn.rtast.libmc.primitives.readVarInt
-import cn.rtast.libmc.nbt.NBTTag
+import cn.rtast.libmc.protocol.protocol.game.chat.readTextComponent
 import cn.rtast.libmc.protocol.protocol.game.scoreboard.ObjectivePayload
 import cn.rtast.libmc.protocol.protocol.game.scoreboard.ObjectiveRenderType
 import cn.rtast.libmc.protocol.protocol.game.scoreboard.ScoreNumberFormat
 import cn.rtast.libmc.protocol.protocol.util.readNetworkNBTCompound
+import cn.rtast.libmc.stream.BytesBuffer
 
 public data class ClientboundUpdateObjectivePacket(
     val objectiveName: String,
@@ -31,14 +32,14 @@ public data class ClientboundUpdateObjectivePacket(
             val payload = when (mode.toInt()) {
                 1 -> ObjectivePayload.Remove
                 0, 2 -> {
-                    val displayName = buffer.readNetworkNBTCompound()
+                    val displayName = buffer.readTextComponent()
                     val renderType = ObjectiveRenderType.fromID(buffer.readVarInt())
                     val hasNumberFormat = buffer.readBoolean()
                     val numberFormat = if (hasNumberFormat) {
                         when (val type = buffer.readVarInt()) {
                             0 -> ScoreNumberFormat.Blank
                             1 -> ScoreNumberFormat.Styled(styling = buffer.readNetworkNBTCompound().element as NBTTag.CompoundTag)  // fix me
-                            2 -> ScoreNumberFormat.Fixed(content = buffer.readNetworkNBTCompound())  // ?
+                            2 -> ScoreNumberFormat.Fixed(content = buffer.readTextComponent())  // ?
                             else -> error("Unknown ScoreNumberFormat type: $type")
                         }
                     } else null

libmc-protocol/src/commonMain/kotlin/cn/rtast/libmc/protocol/packet/play/clientbound/ClientboundUpdateScorePacket.kt

@@ -7,22 +7,23 @@
 
 package cn.rtast.libmc.protocol.packet.play.clientbound
 
+import cn.rtast.libmc.nbt.NBTTag
 import cn.rtast.libmc.packet.MinecraftPacket
 import cn.rtast.libmc.packet.PacketCodec
 import cn.rtast.libmc.primitives.readMcString
 import cn.rtast.libmc.primitives.readOptional
 import cn.rtast.libmc.primitives.readVarInt
-import cn.rtast.libmc.stream.BytesBuffer
+import cn.rtast.libmc.protocol.protocol.game.chat.TextComponent
-import cn.rtast.libmc.nbt.NBTCompound
+import cn.rtast.libmc.protocol.protocol.game.chat.readTextComponent
-import cn.rtast.libmc.nbt.NBTTag
 import cn.rtast.libmc.protocol.protocol.game.scoreboard.ScoreNumberFormat
 import cn.rtast.libmc.protocol.protocol.util.readNetworkNBTCompound
+import cn.rtast.libmc.stream.BytesBuffer
 
 public data class ClientboundUpdateScorePacket(
     val entityName: String,
     val objectiveName: String,
     val value: Int,
-    val displayName: NBTCompound?,
+    val displayName: TextComponent?,
     val numberFormat: ScoreNumberFormat?,
 ) : MinecraftPacket {
     internal companion object Codec : PacketCodec<ClientboundUpdateScorePacket> {
@@ -31,12 +32,12 @@ public data class ClientboundUpdateScorePacket(
             val entityName = buffer.readMcString()
             val objectiveName = buffer.readMcString()
             val value = buffer.readVarInt()
-            val displayName = buffer.readOptional { readNetworkNBTCompound() }
+            val displayName = buffer.readOptional { readTextComponent() }
             val numberFormat = buffer.readOptional {
                 when (val type = readVarInt()) {
                     0 -> ScoreNumberFormat.Blank
                     1 -> ScoreNumberFormat.Styled(styling = readNetworkNBTCompound().element as NBTTag.CompoundTag)  // fix me
-                    2 -> ScoreNumberFormat.Fixed(content = readNetworkNBTCompound())
+                    2 -> ScoreNumberFormat.Fixed(content = readTextComponent())
                     else -> error("Unknown ScoreNumberFormat type: $type")
                 }
             }

libmc-protocol/src/commonMain/kotlin/cn/rtast/libmc/protocol/packet/play/serverbound/ServerboundChangeDifficultyPacket.kt

@@ -10,7 +10,7 @@ package cn.rtast.libmc.protocol.packet.play.serverbound
 import cn.rtast.libmc.stream.BytesBuffer
 import cn.rtast.libmc.packet.PacketCodec
 import cn.rtast.libmc.packet.MinecraftPacket
-import cn.rtast.libmc.protocol.registry.GameDifficulty
+import cn.rtast.libmc.protocol.protocol.game.registry.GameDifficulty
 
 public data class ServerboundChangeDifficultyPacket(val newDifficulty: GameDifficulty) : MinecraftPacket {
     internal companion object Codec : PacketCodec<ServerboundChangeDifficultyPacket> {

libmc-protocol/src/commonMain/kotlin/cn/rtast/libmc/protocol/packet/play/serverbound/ServerboundClientActionPacket.kt

@@ -11,7 +11,7 @@ import cn.rtast.libmc.stream.BytesBuffer
 import cn.rtast.libmc.packet.PacketCodec
 import cn.rtast.libmc.packet.MinecraftPacket
 import cn.rtast.libmc.primitives.writeVarInt
-import cn.rtast.libmc.protocol.registry.ClientAction
+import cn.rtast.libmc.protocol.protocol.game.registry.ClientAction
 
 public data class ServerboundClientActionPacket(val action: ClientAction) : MinecraftPacket {
     internal companion object Codec : PacketCodec<ServerboundClientActionPacket> {

libmc-protocol/src/commonMain/kotlin/cn/rtast/libmc/protocol/packet/play/serverbound/ServerboundTestInstanceBlockActionPacket.kt

@@ -14,6 +14,8 @@ import cn.rtast.libmc.primitives.writeVarInt
 import cn.rtast.libmc.nbt.NBTCompound
 import cn.rtast.libmc.protocol.protocol.game.Identifier
 import cn.rtast.libmc.protocol.protocol.game.block.*
+import cn.rtast.libmc.protocol.protocol.game.chat.TextComponent
+import cn.rtast.libmc.protocol.protocol.game.chat.writeTextComponent
 import cn.rtast.libmc.protocol.protocol.game.writeIdentifier
 import cn.rtast.libmc.protocol.protocol.util.writeNetworkNBTCompound
 
@@ -27,7 +29,7 @@ public data class ServerboundTestInstanceBlockActionPacket(
     val rotation: TestInstanceRotation,
     val ignoreEntities: Boolean,
     val status: TestInstanceStatus,
-    val errorMessage: NBTCompound?,
+    val errorMessage: TextComponent?,
 ) : MinecraftPacket {
     internal companion object Codec : PacketCodec<ServerboundTestInstanceBlockActionPacket> {
         override suspend fun encode(buffer: BytesBuffer, value: ServerboundTestInstanceBlockActionPacket) {
@@ -42,7 +44,7 @@ public data class ServerboundTestInstanceBlockActionPacket(
             buffer.writeBoolean(value.ignoreEntities)
             buffer.writeVarInt(value.status.id)
             buffer.writeBoolean(value.errorMessage != null)
-            if (value.errorMessage != null) buffer.writeNetworkNBTCompound(value.errorMessage)  // TODO to fix
+            if (value.errorMessage != null) buffer.writeTextComponent(value.errorMessage)  // TODO to fix
         }
 
         override suspend fun decode(buffer: BytesBuffer): ServerboundTestInstanceBlockActionPacket =

libmc-protocol/src/commonMain/kotlin/cn/rtast/libmc/protocol/protocol/GameProtocols.kt

@@ -76,7 +76,7 @@ internal object GameProtocols {
             register(0x0d, ClientboundChunksBiomesPacket)
             register(0x0e, ClientboundClearTitlesPacket)
             register(0x0f, ClientboundCommandSuggestionsPacket)
-//            register(0x10, ClientboundCommandsPacket)
+            register(0x10, ClientboundCommandsPacket)
             register(0x11, ClientboundContainerClosePacket)
 //            register(0x12, ClientboundContainerSetContentPacket)
             register(0x13, ClientboundContainerSetDataPacket)

libmc-protocol/src/commonMain/kotlin/cn/rtast/libmc/protocol/protocol/game/bossbar/BossBarAction.kt

@@ -7,11 +7,11 @@
 
 package cn.rtast.libmc.protocol.protocol.game.bossbar
 
-import cn.rtast.libmc.nbt.NBTCompound
+import cn.rtast.libmc.protocol.protocol.game.chat.TextComponent
 
 public sealed interface BossBarAction {
     public data class Add(
-        val title: NBTCompound,
+        val title: TextComponent,
         val health: Float,
         val color: BossBarColor,
         val division: BossBarDivision,
@@ -20,7 +20,7 @@ public sealed interface BossBarAction {
 
     public object Remove : BossBarAction
     public data class UpdateHealth(val health: Float) : BossBarAction
-    public data class UpdateTitle(val title: NBTCompound) : BossBarAction
+    public data class UpdateTitle(val title: TextComponent) : BossBarAction
     public data class UpdateStyle(val color: BossBarColor, val division: BossBarDivision) : BossBarAction
     public data class UpdateFlags(val flags: BossBarFlags) : BossBarAction
 

libmc-protocol/src/commonMain/kotlin/cn/rtast/libmc/protocol/protocol/game/chat/ChatTypeDecoration.kt

@@ -17,7 +17,7 @@ import cn.rtast.libmc.protocol.protocol.util.readNetworkNBTCompound
 public data class ChatTypeDecoration(
     val translationKey: String,
     val parameters: List<ChatTypeParameter>,
-    val style: NBTCompound,
+    val style: NBTCompound,  // TODO TextComponent or Raw NBT Compound
 ) {
     public enum class ChatTypeParameter(public val id: Int) {
         Sender(0), Target(1), Content(2);

libmc-protocol/src/commonMain/kotlin/cn/rtast/libmc/protocol/protocol/game/chat/TextComponent.kt

@@ -0,0 +1,622 @@
+/*
+ * Copyright © 2026 RTAkland
+ * Author: RTAkland
+ * Date: 2026/9/7
+ */
+
+package cn.rtast.libmc.protocol.protocol.game.chat
+
+import cn.rtast.libmc.nbt.NBTCompound
+import cn.rtast.libmc.nbt.NBTTag
+import cn.rtast.libmc.nbt.NBTType
+import cn.rtast.libmc.protocol.protocol.game.Identifier
+import cn.rtast.libmc.protocol.protocol.util.readNetworkNBTCompound
+import cn.rtast.libmc.protocol.protocol.util.writeNetworkNBTCompound
+import cn.rtast.libmc.stream.BytesBuffer
+import kotlin.uuid.Uuid
+
+public data class TextComponent(
+    val content: Content,
+    val style: Style = Style.EMPTY,
+    val extra: List<TextComponent> = emptyList(),
+    val clickEvent: ClickEvent? = null,
+    val hoverEvent: HoverEvent? = null,
+    val insertion: String? = null,
+) {
+    public sealed interface Content {
+        public val type: String
+
+        public data class PlainText(val text: String) : Content {
+            override val type: String = "text"
+        }
+
+        public data class Translatable(
+            val key: String,
+            val fallback: String? = null,
+            val args: List<TextComponent> = emptyList(),
+        ) : Content {
+            override val type: String = "translatable"
+        }
+
+        public data class Score(val name: String, val objective: String) : Content {
+            override val type: String = "score"
+        }
+
+        public data class Selector(val selector: String, val separator: TextComponent? = null) : Content {
+            override val type: String = "selector"
+        }
+
+        public data class Keybind(val keybind: String) : Content {
+            override val type: String = "keybind"
+        }
+
+        public data class Nbt(
+            val path: String,
+            val interpret: Boolean = false,
+            val plain: Boolean = false,
+            val separator: TextComponent? = null,
+            val source: NbtSource,
+        ) : Content {
+            override val type: String = "nbt"
+
+            public sealed interface NbtSource {
+                public data class Entity(val selector: String) : NbtSource
+                public data class Block(val coordinates: String) : NbtSource
+                public data class Storage(val id: Identifier) : NbtSource
+            }
+        }
+
+        public sealed interface ObjectContent : Content {
+            override val type: String get() = "object"
+
+            public data class Atlas(
+                val sprite: Identifier,
+                val atlas: Identifier = Identifier.of("minecraft", "blocks"),
+            ) : ObjectContent
+
+            public data class Player(
+                val profile: PlayerProfile,
+                val hat: Boolean = true,
+            ) : ObjectContent
+        }
+    }
+
+    public data class Style(
+        val color: TextColor? = null,
+        val font: Identifier? = null,
+        val bold: Boolean? = null,
+        val italic: Boolean? = null,
+        val underlined: Boolean? = null,
+        val strikethrough: Boolean? = null,
+        val obfuscated: Boolean? = null,
+        val shadowColor: ShadowColor? = null,
+    ) {
+        public companion object {
+            public val EMPTY: Style = Style()
+        }
+    }
+
+    public sealed interface PlayerProfile {
+        public data class Name(val name: String) : PlayerProfile
+        public data class FullProfile(
+            val name: String? = null,
+            val id: Uuid? = null,
+            val properties: List<Property> = emptyList(),
+        ) : PlayerProfile {
+            public data class Property(
+                val name: String,
+                val value: String,
+                val signature: String? = null,
+            )
+        }
+    }
+
+    public sealed interface TextColor {
+        public data class Named(val name: String) : TextColor
+        public data class Hex(val hex: String) : TextColor
+    }
+
+    public sealed interface ShadowColor {
+        public data class ArgbInt(val argb: Long) : ShadowColor
+        public data class RgbaFloat(
+            val red: Float,
+            val green: Float,
+            val blue: Float,
+            val alpha: Float,
+        ) : ShadowColor
+    }
+
+    public sealed interface ClickEvent {
+        public val action: ClickEventAction
+
+        public enum class ClickEventAction(public val text: String) {
+            OpenURL("open_url"),
+            OpenFile("open_file"),
+            RunCommand("run_command"),
+            SuggestCommand("suggest_command"),
+            ChangePage("change_page"),
+            CopyToClipboard("copy_to_clipboard"),
+            ShowDialog("show_dialog"),
+            Custom("custom");
+
+            public companion object {
+                public fun fromText(text: String): ClickEventAction =
+                    entries.first { it.text == text }
+            }
+        }
+
+        public data class OpenUrl(val url: String) : ClickEvent {
+            override val action: ClickEventAction = ClickEventAction.OpenURL
+        }
+
+        public data class OpenFile(val path: String) : ClickEvent {
+            override val action: ClickEventAction = ClickEventAction.OpenFile
+        }
+
+        public data class RunCommand(val command: String) : ClickEvent {
+            override val action: ClickEventAction = ClickEventAction.RunCommand
+        }
+
+        public data class SuggestCommand(val command: String) : ClickEvent {
+            override val action: ClickEventAction = ClickEventAction.SuggestCommand
+        }
+
+        public data class ChangePage(val page: Int) : ClickEvent {
+            override val action: ClickEventAction = ClickEventAction.ChangePage
+        }
+
+        public data class CopyToClipboard(val value: String) : ClickEvent {
+            override val action: ClickEventAction = ClickEventAction.CopyToClipboard
+        }
+
+        public data class ShowDialog(val dialog: DialogPayload) : ClickEvent {
+            override val action: ClickEventAction = ClickEventAction.ShowDialog
+
+            public sealed interface DialogPayload {
+                public data class Id(val id: Identifier) : DialogPayload
+                public data class Definition(val compound: NBTTag.CompoundTag) : DialogPayload
+            }
+        }
+
+        public data class Custom(val id: Identifier, val payload: String? = null) : ClickEvent {
+            override val action: ClickEventAction = ClickEventAction.Custom
+        }
+    }
+
+    public sealed interface HoverEvent {
+        public val action: HoverEventAction
+
+        public enum class HoverEventAction(public val text: String) {
+            ShowText("show_text"),
+            ShowItem("show_item"),
+            ShowEntity("show_entity");
+
+            public companion object {
+                public fun fromText(text: String): HoverEventAction =
+                    entries.first { it.text == text }
+            }
+        }
+
+        public data class ShowText(val component: TextComponent) : HoverEvent {
+            override val action: HoverEventAction = HoverEventAction.ShowText
+        }
+
+        public data class ShowItem(
+            val id: Identifier,
+            val count: Int = 1,
+            val components: NBTTag.CompoundTag? = null,
+        ) : HoverEvent {
+            override val action: HoverEventAction = HoverEventAction.ShowItem
+        }
+
+        public data class ShowEntity(
+            val id: Identifier,
+            val uuid: UUIDRepresentation,
+            val name: TextComponent? = null,
+        ) : HoverEvent {
+            override val action: HoverEventAction = HoverEventAction.ShowEntity
+
+            public sealed interface UUIDRepresentation {
+                public data class StringFormat(val uuid: Uuid) : UUIDRepresentation
+                public data class ArrayFormat(val i1: Int, val i2: Int, val i3: Int, val i4: Int) : UUIDRepresentation
+            }
+        }
+    }
+
+    public companion object {
+        public fun of(text: String): TextComponent = TextComponent(content = Content.PlainText(text))
+    }
+}
+
+public fun NBTTag.toTextComponent(): TextComponent {
+    return when (this) {
+        is NBTTag.StringTag -> TextComponent.of(this.value)
+        is NBTTag.ListTag -> {
+            val tags = this.value
+            if (tags.isEmpty()) return TextComponent.of("")
+            val head = tags.first().toTextComponent()
+            val tail = tags.drop(1).map { it.toTextComponent() }
+            head.copy(extra = head.extra + tail)
+        }
+
+        is NBTTag.CompoundTag -> {
+            val content = parseContentFromNbt(this)
+            val style = parseStyleFromNbt(this)
+            val extra = this.getListOrNull("extra")?.map { it.toTextComponent() } ?: emptyList()
+            val clickEvent = this.getCompoundOrNull("click_event")?.let { parseClickEventFromNbt(it) }
+            val hoverEvent = this.getCompoundOrNull("hover_event")?.let { parseHoverEventFromNbt(it) }
+            val insertion = this.getStringOrNull("insertion")
+
+            TextComponent(
+                content = content,
+                style = style,
+                extra = extra,
+                clickEvent = clickEvent,
+                hoverEvent = hoverEvent,
+                insertion = insertion
+            )
+        }
+
+        else -> TextComponent.of(this.toString())
+    }
+}
+
+private fun parseContentFromNbt(tag: NBTTag.CompoundTag): TextComponent.Content {
+    val type = tag.getStringOrNull("type")
+    return when {
+        type == "text" || (type == null && tag.containsKey("text")) ->
+            TextComponent.Content.PlainText(tag.getString("text"))
+
+        type == "translatable" || (type == null && tag.containsKey("translate")) -> {
+            TextComponent.Content.Translatable(
+                key = tag.getString("translate"),
+                fallback = tag.getStringOrNull("fallback"),
+                args = tag.getListOrNull("with")?.map { it.toTextComponent() } ?: emptyList()
+            )
+        }
+
+        type == "score" || (type == null && tag.containsKey("score")) -> {
+            val scoreObj = tag.getCompound("score")
+            TextComponent.Content.Score(
+                name = scoreObj.getString("name"),
+                objective = scoreObj.getString("objective")
+            )
+        }
+
+        type == "selector" || (type == null && tag.containsKey("selector")) -> {
+            TextComponent.Content.Selector(
+                selector = tag.getString("selector"),
+                separator = tag.getOrNull("separator")?.toTextComponent()
+            )
+        }
+
+        type == "keybind" || (type == null && tag.containsKey("keybind")) -> {
+            TextComponent.Content.Keybind(tag.getString("keybind"))
+        }
+
+        type == "nbt" || (type == null && tag.containsKey("nbt")) -> {
+            val path = tag.getString("nbt")
+            val interpret = tag.getBooleanOrNull("interpret") ?: false
+            val plain = tag.getBooleanOrNull("plain") ?: false
+            val separator = tag.getOrNull("separator")?.toTextComponent()
+
+            val source = when {
+                tag.containsKey("entity") -> TextComponent.Content.Nbt.NbtSource.Entity(tag.getString("entity"))
+                tag.containsKey("block") -> TextComponent.Content.Nbt.NbtSource.Block(tag.getString("block"))
+                tag.containsKey("storage") -> TextComponent.Content.Nbt.NbtSource.Storage(Identifier.of(tag.getString("storage")))
+                else -> throw IllegalArgumentException("Missing NBT source (entity, block, or storage)")
+            }
+
+            TextComponent.Content.Nbt(path, interpret, plain, separator, source)
+        }
+
+        type == "object" || (type == null && (tag.containsKey("atlas") || tag.containsKey("sprite") || tag.containsKey("player"))) -> {
+            val objectType = tag.getStringOrNull("object") ?: if (tag.containsKey("player")) "player" else "atlas"
+            if (objectType == "player") {
+                val hat = tag.getBooleanOrNull("hat") ?: true
+                val playerTag = tag.getOrNull("player")
+                val profile = if (playerTag is NBTTag.StringTag) {
+                    TextComponent.PlayerProfile.Name(playerTag.value)
+                } else {
+                    val pComp = playerTag as NBTTag.CompoundTag
+                    TextComponent.PlayerProfile.FullProfile(
+                        name = pComp.getStringOrNull("name"),
+                        id = pComp.getStringOrNull("id")?.let { Uuid.parse(it) }
+                    )
+                }
+                TextComponent.Content.ObjectContent.Player(profile, hat)
+            } else {
+                TextComponent.Content.ObjectContent.Atlas(
+                    sprite = Identifier.of(tag.getString("sprite")),
+                    atlas = tag.getStringOrNull("atlas")?.let { Identifier.of(it) } ?: Identifier.of(
+                        "minecraft",
+                        "blocks"
+                    )
+                )
+            }
+        }
+
+        else -> TextComponent.Content.PlainText("")
+    }
+}
+
+private fun parseStyleFromNbt(tag: NBTTag.CompoundTag): TextComponent.Style {
+    val color = tag.getStringOrNull("color")?.let {
+        if (it.startsWith("#")) TextComponent.TextColor.Hex(it) else TextComponent.TextColor.Named(it)
+    }
+    val font = tag.getStringOrNull("font")?.let { Identifier.of(it) }
+    val shadowColor = when (val sc = tag.getOrNull("shadow_color")) {
+        is NBTTag.IntTag -> TextComponent.ShadowColor.ArgbInt(sc.value.toLong())
+        is NBTTag.ListTag -> {
+            val floats = sc.value.filterIsInstance<NBTTag.FloatTag>().map { it.value }
+            if (floats.size == 4) {
+                TextComponent.ShadowColor.RgbaFloat(floats[0], floats[1], floats[2], floats[3])
+            } else null
+        }
+
+        else -> null
+    }
+
+    return TextComponent.Style(
+        color = color,
+        font = font,
+        bold = tag.getBooleanOrNull("bold"),
+        italic = tag.getBooleanOrNull("italic"),
+        underlined = tag.getBooleanOrNull("underlined"),
+        strikethrough = tag.getBooleanOrNull("strikethrough"),
+        obfuscated = tag.getBooleanOrNull("obfuscated"),
+        shadowColor = shadowColor
+    )
+}
+
+private fun parseClickEventFromNbt(tag: NBTTag.CompoundTag): TextComponent.ClickEvent {
+    val action = TextComponent.ClickEvent.ClickEventAction.fromText(tag.getString("action"))
+    return when (action) {
+        TextComponent.ClickEvent.ClickEventAction.OpenURL -> TextComponent.ClickEvent.OpenUrl(tag.getString("url"))
+        TextComponent.ClickEvent.ClickEventAction.OpenFile -> TextComponent.ClickEvent.OpenFile(tag.getString("path"))
+        TextComponent.ClickEvent.ClickEventAction.RunCommand -> TextComponent.ClickEvent.RunCommand(tag.getString("command"))
+        TextComponent.ClickEvent.ClickEventAction.SuggestCommand -> TextComponent.ClickEvent.SuggestCommand(
+            tag.getString(
+                "command"
+            )
+        )
+
+        TextComponent.ClickEvent.ClickEventAction.ChangePage -> TextComponent.ClickEvent.ChangePage(tag.getInt("page"))
+        TextComponent.ClickEvent.ClickEventAction.CopyToClipboard -> TextComponent.ClickEvent.CopyToClipboard(
+            tag.getString(
+                "value"
+            )
+        )
+
+        TextComponent.ClickEvent.ClickEventAction.ShowDialog -> {
+            val dialogTag = tag.getOrNull("dialog")
+            val payload = if (dialogTag is NBTTag.StringTag) {
+                TextComponent.ClickEvent.ShowDialog.DialogPayload.Id(Identifier.of(dialogTag.value))
+            } else {
+                TextComponent.ClickEvent.ShowDialog.DialogPayload.Definition(dialogTag as NBTTag.CompoundTag)
+            }
+            TextComponent.ClickEvent.ShowDialog(payload)
+        }
+
+        TextComponent.ClickEvent.ClickEventAction.Custom -> TextComponent.ClickEvent.Custom(
+            id = Identifier.of(tag.getString("id")),
+            payload = tag.getStringOrNull("payload")
+        )
+    }
+}
+
+private fun parseHoverEventFromNbt(tag: NBTTag.CompoundTag): TextComponent.HoverEvent {
+    val action = TextComponent.HoverEvent.HoverEventAction.fromText(tag.getString("action"))
+    return when (action) {
+        TextComponent.HoverEvent.HoverEventAction.ShowText -> {
+            TextComponent.HoverEvent.ShowText(tag.getCompound("value").toTextComponent())
+        }
+
+        TextComponent.HoverEvent.HoverEventAction.ShowItem -> {
+            TextComponent.HoverEvent.ShowItem(
+                id = Identifier.of(tag.getString("id")),
+                count = tag.getIntOrNull("count") ?: 1,
+                components = tag.getCompoundOrNull("components")
+            )
+        }
+
+        TextComponent.HoverEvent.HoverEventAction.ShowEntity -> {
+            val uuidTag = tag.getOrNull("uuid")
+            val uuid = if (uuidTag is NBTTag.StringTag) {
+                TextComponent.HoverEvent.ShowEntity.UUIDRepresentation.StringFormat(Uuid.parse(uuidTag.value))
+            } else {
+                val list = (uuidTag as NBTTag.IntArrayTag).value
+                TextComponent.HoverEvent.ShowEntity.UUIDRepresentation.ArrayFormat(list[0], list[1], list[2], list[3])
+            }
+            TextComponent.HoverEvent.ShowEntity(
+                id = Identifier.of(tag.getString("id")),
+                uuid = uuid,
+                name = tag.getOrNull("name")?.toTextComponent()
+            )
+        }
+    }
+}
+
+public fun TextComponent.toNbt(): NBTTag.CompoundTag {
+    val map = mutableMapOf<String, NBTTag>()
+    when (val c = this.content) {
+        is TextComponent.Content.PlainText -> {
+            map["type"] = NBTTag.StringTag("text")
+            map["text"] = NBTTag.StringTag(c.text)
+        }
+
+        is TextComponent.Content.Translatable -> {
+            map["type"] = NBTTag.StringTag("translatable")
+            map["translate"] = NBTTag.StringTag(c.key)
+            c.fallback?.let { map["fallback"] = NBTTag.StringTag(it) }
+            if (c.args.isNotEmpty()) {
+                map["with"] = NBTTag.ListTag(NBTType.List, c.args.map { it.toNbt() as NBTTag }.toMutableList())
+            }
+        }
+
+        is TextComponent.Content.Score -> {
+            map["type"] = NBTTag.StringTag("score")
+            map["score"] = NBTTag.CompoundTag(
+                mutableMapOf(
+                    "name" to NBTTag.StringTag(c.name),
+                    "objective" to NBTTag.StringTag(c.objective)
+                )
+            )
+        }
+
+        is TextComponent.Content.Selector -> {
+            map["type"] = NBTTag.StringTag("selector")
+            map["selector"] = NBTTag.StringTag(c.selector)
+            c.separator?.let { map["separator"] = it.toNbt() }
+        }
+
+        is TextComponent.Content.Keybind -> {
+            map["type"] = NBTTag.StringTag("keybind")
+            map["keybind"] = NBTTag.StringTag(c.keybind)
+        }
+
+        is TextComponent.Content.Nbt -> {
+            map["type"] = NBTTag.StringTag("nbt")
+            map["nbt"] = NBTTag.StringTag(c.path)
+            map["interpret"] = NBTTag.ByteTag(if (c.interpret) 1 else 0)
+            map["plain"] = NBTTag.ByteTag(if (c.plain) 1 else 0)
+            c.separator?.let { map["separator"] = it.toNbt() }
+            when (val s = c.source) {
+                is TextComponent.Content.Nbt.NbtSource.Entity -> map["entity"] = NBTTag.StringTag(s.selector)
+                is TextComponent.Content.Nbt.NbtSource.Block -> map["block"] = NBTTag.StringTag(s.coordinates)
+                is TextComponent.Content.Nbt.NbtSource.Storage -> map["storage"] = NBTTag.StringTag(s.id.toString())
+            }
+        }
+
+        is TextComponent.Content.ObjectContent.Atlas -> {
+            map["type"] = NBTTag.StringTag("object")
+            map["object"] = NBTTag.StringTag("atlas")
+            map["sprite"] = NBTTag.StringTag(c.sprite.toString())
+            map["atlas"] = NBTTag.StringTag(c.atlas.toString())
+        }
+
+        is TextComponent.Content.ObjectContent.Player -> {
+            map["type"] = NBTTag.StringTag("object")
+            map["object"] = NBTTag.StringTag("player")
+            map["hat"] = NBTTag.ByteTag(if (c.hat) 1 else 0)
+            when (val p = c.profile) {
+                is TextComponent.PlayerProfile.Name -> map["player"] = NBTTag.StringTag(p.name)
+                is TextComponent.PlayerProfile.FullProfile -> {
+                    val pMap = mutableMapOf<String, NBTTag>()
+                    p.name?.let { pMap["name"] = NBTTag.StringTag(it) }
+                    p.id?.let { pMap["id"] = NBTTag.StringTag(it.toString()) }
+                    map["player"] = NBTTag.CompoundTag(pMap)
+                }
+            }
+        }
+    }
+
+    this.style.color?.let {
+        map["color"] = NBTTag.StringTag(
+            when (it) {
+                is TextComponent.TextColor.Named -> it.name
+                is TextComponent.TextColor.Hex -> it.hex
+            }
+        )
+    }
+    this.style.font?.let { map["font"] = NBTTag.StringTag(it.toString()) }
+    this.style.bold?.let { map["bold"] = NBTTag.ByteTag(if (it) 1 else 0) }
+    this.style.italic?.let { map["italic"] = NBTTag.ByteTag(if (it) 1 else 0) }
+    this.style.underlined?.let { map["underlined"] = NBTTag.ByteTag(if (it) 1 else 0) }
+    this.style.strikethrough?.let { map["strikethrough"] = NBTTag.ByteTag(if (it) 1 else 0) }
+    this.style.obfuscated?.let { map["obfuscated"] = NBTTag.ByteTag(if (it) 1 else 0) }
+    this.style.shadowColor?.let {
+        when (it) {
+            is TextComponent.ShadowColor.ArgbInt -> map["shadow_color"] = NBTTag.IntTag(it.argb.toInt())
+            is TextComponent.ShadowColor.RgbaFloat -> map["shadow_color"] = NBTTag.ListTag(
+                NBTType.List, mutableListOf(
+                    NBTTag.FloatTag(it.red),
+                    NBTTag.FloatTag(it.green),
+                    NBTTag.FloatTag(it.blue),
+                    NBTTag.FloatTag(it.alpha)
+                )
+            )
+        }
+    }
+
+    if (this.extra.isNotEmpty()) map["extra"] =
+        NBTTag.ListTag(NBTType.List, this.extra.map { it.toNbt() as NBTTag }.toMutableList())
+    this.insertion?.let { map["insertion"] = NBTTag.StringTag(it) }
+    this.clickEvent?.let { map["click_event"] = encodeClickEventToNbt(it) }
+    this.hoverEvent?.let { map["hover_event"] = encodeHoverEventToNbt(it) }
+
+    return NBTTag.CompoundTag(map)
+}
+
+private fun encodeClickEventToNbt(event: TextComponent.ClickEvent): NBTTag.CompoundTag {
+    val map = mutableMapOf<String, NBTTag>("action" to NBTTag.StringTag(event.action.text))
+    when (event) {
+        is TextComponent.ClickEvent.OpenUrl -> map["url"] = NBTTag.StringTag(event.url)
+        is TextComponent.ClickEvent.OpenFile -> map["path"] = NBTTag.StringTag(event.path)
+        is TextComponent.ClickEvent.RunCommand -> map["command"] = NBTTag.StringTag(event.command)
+        is TextComponent.ClickEvent.SuggestCommand -> map["command"] = NBTTag.StringTag(event.command)
+        is TextComponent.ClickEvent.ChangePage -> map["page"] = NBTTag.IntTag(event.page)
+        is TextComponent.ClickEvent.CopyToClipboard -> map["value"] = NBTTag.StringTag(event.value)
+        is TextComponent.ClickEvent.ShowDialog -> {
+            map["dialog"] = when (val d = event.dialog) {
+                is TextComponent.ClickEvent.ShowDialog.DialogPayload.Id -> NBTTag.StringTag(d.id.toString())
+                is TextComponent.ClickEvent.ShowDialog.DialogPayload.Definition -> d.compound
+            }
+        }
+
+        is TextComponent.ClickEvent.Custom -> {
+            map["id"] = NBTTag.StringTag(event.id.toString())
+            event.payload?.let { map["payload"] = NBTTag.StringTag(it) }
+        }
+    }
+    return NBTTag.CompoundTag(map)
+}
+
+private fun encodeHoverEventToNbt(event: TextComponent.HoverEvent): NBTTag.CompoundTag {
+    val map = mutableMapOf<String, NBTTag>("action" to NBTTag.StringTag(event.action.text))
+    when (event) {
+        is TextComponent.HoverEvent.ShowText -> map["value"] = event.component.toNbt()
+        is TextComponent.HoverEvent.ShowItem -> {
+            map["id"] = NBTTag.StringTag(event.id.toString())
+            map["count"] = NBTTag.IntTag(event.count)
+            event.components?.let { map["components"] = it }
+        }
+
+        is TextComponent.HoverEvent.ShowEntity -> {
+            map["id"] = NBTTag.StringTag(event.id.toString())
+            map["uuid"] = when (val u = event.uuid) {
+                is TextComponent.HoverEvent.ShowEntity.UUIDRepresentation.StringFormat -> NBTTag.StringTag(u.uuid.toString())
+                is TextComponent.HoverEvent.ShowEntity.UUIDRepresentation.ArrayFormat -> NBTTag.IntArrayTag(
+                    intArrayOf(u.i1, u.i2, u.i3, u.i4)
+                )
+            }
+            event.name?.let { map["name"] = it.toNbt() }
+        }
+    }
+    return NBTTag.CompoundTag(map)
+}
+
+private fun NBTTag.CompoundTag.getOrNull(key: String): NBTTag? = this.value[key]
+private fun NBTTag.CompoundTag.containsKey(key: String): Boolean = this.value.containsKey(key)
+private fun NBTTag.CompoundTag.getString(key: String): String = (this.value[key] as NBTTag.StringTag).value
+private fun NBTTag.CompoundTag.getStringOrNull(key: String): String? = (this.value[key] as? NBTTag.StringTag)?.value
+private fun NBTTag.CompoundTag.getInt(key: String): Int = (this.value[key] as NBTTag.IntTag).value
+private fun NBTTag.CompoundTag.getIntOrNull(key: String): Int? = (this.value[key] as? NBTTag.IntTag)?.value
+private fun NBTTag.CompoundTag.getBooleanOrNull(key: String): Boolean? = when (val t = this.value[key]) {
+    is NBTTag.ByteTag -> t.value != 0.toByte()
+    else -> null
+}
+
+private fun NBTTag.CompoundTag.getCompound(key: String): NBTTag.CompoundTag = this.value[key] as NBTTag.CompoundTag
+private fun NBTTag.CompoundTag.getCompoundOrNull(key: String): NBTTag.CompoundTag? =
+    this.value[key] as? NBTTag.CompoundTag
+
+private fun NBTTag.CompoundTag.getListOrNull(key: String): List<NBTTag>? = (this.value[key] as? NBTTag.ListTag)?.value
+
+internal suspend fun BytesBuffer.readTextComponent(): TextComponent =
+    this.readNetworkNBTCompound().element.toTextComponent()
+
+internal suspend fun BytesBuffer.writeTextComponent(component: TextComponent) {
+    val nbt = component.toNbt()
+    this.writeNetworkNBTCompound(NBTCompound("", nbt))
+}

libmc-protocol/src/commonMain/kotlin/cn/rtast/libmc/protocol/protocol/game/command/CommandArgumentProperties.kt

@@ -0,0 +1,42 @@
+/*
+ * Copyright © 2026 RTAkland
+ * Author: RTAkland
+ * Date: 2026/9/7
+ */
+
+
+package cn.rtast.libmc.protocol.protocol.game.command
+
+import cn.rtast.libmc.protocol.protocol.game.Identifier
+
+public sealed interface CommandArgumentProperties {
+    public object Empty : CommandArgumentProperties
+
+    public data class IntProp(val min: Int = Int.MIN_VALUE, val max: Int = Int.MAX_VALUE) :
+        CommandArgumentProperties
+
+    public data class LongProp(val min: Long = Long.MIN_VALUE, val max: Long = Long.MAX_VALUE) :
+        CommandArgumentProperties
+
+    public data class FloatProp(val min: Float = Float.MIN_VALUE, val max: Float = Float.MAX_VALUE) :
+        CommandArgumentProperties
+
+    public data class DoubleProp(val min: Double = Double.MIN_VALUE, val max: Double = Double.MAX_VALUE) :
+        CommandArgumentProperties
+
+    public data class StringProp(val behavior: StringBehavior) : CommandArgumentProperties {
+        public enum class StringBehavior(public val id: Int) {
+            SingleWord(0), QuotablePhrase(1), GreedyPhrase(2);
+
+            public companion object {
+                public fun fromId(id: Int): StringBehavior = entries.first { it.id == id }
+            }
+        }
+    }
+
+    public data class Entity(val singleOnly: Boolean, val playersOnly: Boolean) : CommandArgumentProperties
+
+    public data class ScoreHolder(val allowMultiple: Boolean) : CommandArgumentProperties
+    public data class Time(val min: Int) : CommandArgumentProperties
+    public data class Registry(val registry: Identifier) : CommandArgumentProperties
+}

libmc-protocol/src/commonMain/kotlin/cn/rtast/libmc/protocol/protocol/game/command/CommandNode.kt

@@ -0,0 +1,233 @@
+/*
+ * Copyright © 2026 RTAkland
+ * Author: RTAkland
+ * Date: 2026/9/7
+ */
+
+package cn.rtast.libmc.protocol.protocol.game.command
+
+import cn.rtast.libmc.packet.PacketCodec
+import cn.rtast.libmc.primitives.readMcString
+import cn.rtast.libmc.primitives.readVarInt
+import cn.rtast.libmc.primitives.writeMcString
+import cn.rtast.libmc.primitives.writeVarInt
+import cn.rtast.libmc.protocol.protocol.game.readIdentifier
+import cn.rtast.libmc.protocol.protocol.game.writeIdentifier
+import cn.rtast.libmc.stream.BytesBuffer
+
+public data class CommandNode(
+    val type: NodeType,
+    val isExecutable: Boolean,
+    val isRestricted: Boolean,
+    val childrenIndexes: List<Int>,
+    val redirectNodeIndex: Int?,
+    val name: String?,
+    val parserId: Int?,
+    val properties: CommandArgumentProperties?,
+    val suggestionsType: CommandSuggestionsType?,
+) {
+    public enum class NodeType(public val id: Int) {
+        Root(0), Literal(1), Argument(2);
+
+        public companion object {
+            public const val NODE_TYPE_MASK: Int = 0x03
+            public const val IS_EXECUTABLE_MASK: Int = 0x04
+            public const val HAS_REDIRECT_MASK: Int = 0x08
+            public const val HAS_SUGGESTIONS_TYPE_MASK: Int = 0x10
+            public const val IS_RESTRICTED_MASK: Int = 0x20
+
+            public fun fromID(id: Int): NodeType = entries.first { it.id == id }
+        }
+    }
+
+    internal companion object Codec : PacketCodec<CommandNode> {
+        private const val PARSER_INTEGER = 3
+        private const val PARSER_LONG = 4
+        private const val PARSER_FLOAT = 1
+        private const val PARSER_DOUBLE = 2
+        private const val PARSER_STRING = 5
+        private const val PARSER_ENTITY = 6
+        private const val PARSER_SCORE_HOLDER = 31
+        private const val PARSER_TIME = 43
+        private const val PARSER_RESOURCE_OR_TAG = 44
+        private const val PARSER_RESOURCE_OR_TAG_KEY = 45
+        private const val PARSER_RESOURCE = 46
+        private const val PARSER_RESOURCE_KEY = 47
+        private const val PARSER_RESOURCE_SELECTOR = 48
+
+        override suspend fun encode(buffer: BytesBuffer, value: CommandNode) {
+            var flags = value.type.id and NodeType.NODE_TYPE_MASK
+            if (value.isExecutable) flags = flags or NodeType.IS_EXECUTABLE_MASK
+            if (value.redirectNodeIndex != null) flags = flags or NodeType.HAS_REDIRECT_MASK
+            if (value.suggestionsType != null) flags = flags or NodeType.HAS_SUGGESTIONS_TYPE_MASK
+            if (value.isRestricted) flags = flags or NodeType.IS_RESTRICTED_MASK
+            buffer.writeByte(flags.toByte())
+            buffer.writeVarInt(value.childrenIndexes.size)
+            value.childrenIndexes.forEach { buffer.writeVarInt(it) }
+            if (value.redirectNodeIndex != null) buffer.writeVarInt(value.redirectNodeIndex)
+            if (value.type == NodeType.Literal || value.type == NodeType.Argument) buffer.writeMcString(
+                value.name ?: ""
+            )
+
+            if (value.type == NodeType.Argument) {
+                val parserId = value.parserId ?: 0
+                buffer.writeVarInt(parserId)
+                value.properties?.let { buffer.encodeProperties(it) } ?: buffer.encodeProperties(
+                    CommandArgumentProperties.Empty
+                )
+            }
+            if (value.suggestionsType != null) buffer.writeIdentifier(value.suggestionsType.id)
+        }
+
+        override suspend fun decode(buffer: BytesBuffer): CommandNode {
+            val flags = buffer.readByte().toInt() and 0xFF
+            val nodeType = NodeType.fromID(flags and NodeType.NODE_TYPE_MASK)
+            val isExecutable = (flags and NodeType.IS_EXECUTABLE_MASK) != 0
+            val hasRedirect = (flags and NodeType.HAS_REDIRECT_MASK) != 0
+            val hasSuggestionsType = (flags and NodeType.HAS_SUGGESTIONS_TYPE_MASK) != 0
+            val isRestricted = (flags and NodeType.IS_RESTRICTED_MASK) != 0
+            val childrenCount = buffer.readVarInt()
+            val childrenIndexes = ArrayList<Int>(childrenCount)
+            repeat(childrenCount) { childrenIndexes.add(buffer.readVarInt()) }
+            val redirectNodeIndex = if (hasRedirect) buffer.readVarInt() else null
+            val name =
+                if (nodeType == NodeType.Literal || nodeType == NodeType.Argument) buffer.readMcString() else null
+            var parserId: Int? = null
+            var properties: CommandArgumentProperties? = null
+            if (nodeType == NodeType.Argument) {
+                val pId = buffer.readVarInt()
+                parserId = pId
+                properties = buffer.decodeProperties(pId)
+            }
+            val suggestionsType =
+                if (hasSuggestionsType) CommandSuggestionsType.fromIdentifier(buffer.readIdentifier()) else null
+            return CommandNode(
+                type = nodeType,
+                isExecutable = isExecutable,
+                isRestricted = isRestricted,
+                childrenIndexes = childrenIndexes,
+                redirectNodeIndex = redirectNodeIndex,
+                name = name,
+                parserId = parserId,
+                properties = properties,
+                suggestionsType = suggestionsType
+            )
+        }
+
+        private suspend fun BytesBuffer.decodeProperties(parserId: Int): CommandArgumentProperties {
+            return when (parserId) {
+                PARSER_INTEGER -> {
+                    val flags = readByte().toInt()
+                    val min = if ((flags and 0x01) != 0) readInt() else Int.MIN_VALUE
+                    val max = if ((flags and 0x02) != 0) readInt() else Int.MAX_VALUE
+                    CommandArgumentProperties.IntProp(min, max)
+                }
+
+                PARSER_LONG -> {
+                    val flags = readByte().toInt()
+                    val min = if ((flags and 0x01) != 0) readLong() else Long.MIN_VALUE
+                    val max = if ((flags and 0x02) != 0) readLong() else Long.MAX_VALUE
+                    CommandArgumentProperties.LongProp(min, max)
+                }
+
+                PARSER_FLOAT -> {
+                    val flags = readByte().toInt()
+                    val min = if ((flags and 0x01) != 0) readFloat() else -Float.MAX_VALUE
+                    val max = if ((flags and 0x02) != 0) readFloat() else Float.MAX_VALUE
+                    CommandArgumentProperties.FloatProp(min, max)
+                }
+
+                PARSER_DOUBLE -> {
+                    val flags = readByte().toInt()
+                    val min = if ((flags and 0x01) != 0) readDouble() else -Double.MAX_VALUE
+                    val max = if ((flags and 0x02) != 0) readDouble() else Double.MAX_VALUE
+                    CommandArgumentProperties.DoubleProp(min, max)
+                }
+
+                PARSER_STRING -> {
+                    val behaviorId = readVarInt()
+                    CommandArgumentProperties.StringProp(
+                        CommandArgumentProperties.StringProp.StringBehavior.fromId(behaviorId)
+                    )
+                }
+
+                PARSER_ENTITY -> {
+                    val flags = readByte().toInt()
+                    CommandArgumentProperties.Entity(
+                        singleOnly = (flags and 0x01) != 0,
+                        playersOnly = (flags and 0x02) != 0
+                    )
+                }
+
+                PARSER_SCORE_HOLDER -> {
+                    val flags = readByte().toInt()
+                    CommandArgumentProperties.ScoreHolder(allowMultiple = (flags and 0x01) != 0)
+                }
+
+                PARSER_TIME -> CommandArgumentProperties.Time(min = readInt())
+                PARSER_RESOURCE_OR_TAG, PARSER_RESOURCE_OR_TAG_KEY, PARSER_RESOURCE, PARSER_RESOURCE_KEY, PARSER_RESOURCE_SELECTOR -> {
+                    CommandArgumentProperties.Registry(readIdentifier())
+                }
+
+                else -> CommandArgumentProperties.Empty
+            }
+        }
+
+        private suspend fun BytesBuffer.encodeProperties(properties: CommandArgumentProperties) {
+            when (properties) {
+                is CommandArgumentProperties.IntProp -> {
+                    var flags = 0
+                    if (properties.min != Int.MIN_VALUE) flags = flags or 0x01
+                    if (properties.max != Int.MAX_VALUE) flags = flags or 0x02
+                    writeByte(flags.toByte())
+                    if ((flags and 0x01) != 0) writeInt(properties.min)
+                    if ((flags and 0x02) != 0) writeInt(properties.max)
+                }
+
+                is CommandArgumentProperties.LongProp -> {
+                    var flags = 0
+                    if (properties.min != Long.MIN_VALUE) flags = flags or 0x01
+                    if (properties.max != Long.MAX_VALUE) flags = flags or 0x02
+                    writeByte(flags.toByte())
+                    if ((flags and 0x01) != 0) writeLong(properties.min)
+                    if ((flags and 0x02) != 0) writeLong(properties.max)
+                }
+
+                is CommandArgumentProperties.FloatProp -> {
+                    var flags = 0
+                    if (properties.min != -Float.MAX_VALUE) flags = flags or 0x01
+                    if (properties.max != Float.MAX_VALUE) flags = flags or 0x02
+                    writeByte(flags.toByte())
+                    if ((flags and 0x01) != 0) writeFloat(properties.min)
+                    if ((flags and 0x02) != 0) writeFloat(properties.max)
+                }
+
+                is CommandArgumentProperties.DoubleProp -> {
+                    var flags = 0
+                    if (properties.min != -Double.MAX_VALUE) flags = flags or 0x01
+                    if (properties.max != Double.MAX_VALUE) flags = flags or 0x02
+                    writeByte(flags.toByte())
+                    if ((flags and 0x01) != 0) writeDouble(properties.min)
+                    if ((flags and 0x02) != 0) writeDouble(properties.max)
+                }
+
+                is CommandArgumentProperties.StringProp -> writeVarInt(properties.behavior.id)
+                is CommandArgumentProperties.Entity -> {
+                    var flags = 0
+                    if (properties.singleOnly) flags = flags or 0x01
+                    if (properties.playersOnly) flags = flags or 0x02
+                    writeByte(flags.toByte())
+                }
+
+                is CommandArgumentProperties.ScoreHolder -> {
+                    val flags = if (properties.allowMultiple) 0x01 else 0x00
+                    writeByte(flags.toByte())
+                }
+
+                is CommandArgumentProperties.Time -> writeInt(properties.min)
+                is CommandArgumentProperties.Registry -> writeIdentifier(properties.registry)
+                CommandArgumentProperties.Empty -> {}
+            }
+        }
+    }
+}

libmc-protocol/src/commonMain/kotlin/cn/rtast/libmc/protocol/protocol/game/command/CommandSuggestionsType.kt

@@ -0,0 +1,22 @@
+/*
+ * Copyright © 2026 RTAkland
+ * Author: RTAkland
+ * Date: 2026/9/7
+ */
+
+
+package cn.rtast.libmc.protocol.protocol.game.command
+
+import cn.rtast.libmc.protocol.protocol.game.Identifier
+
+public enum class CommandSuggestionsType(public val id: Identifier) {
+    AskServer(Identifier.of("minecraft:ask_server")),
+    AllRecipes(Identifier.of("minecraft:all_recipes")),
+    AvailableSounds(Identifier.of("minecraft:available_sounds")),
+    SummonableEntities(Identifier.of("minecraft:summonable_entities"));
+
+    public companion object {
+        public fun fromIdentifier(id: Identifier?): CommandSuggestionsType? =
+            entries.firstOrNull { it.id.raw == id?.raw }
+    }
+}

libmc-protocol/src/commonMain/kotlin/cn/rtast/libmc/protocol/protocol/game/registry/ClientAction.kt

@@ -5,7 +5,7 @@
  */
 
 
-package cn.rtast.libmc.protocol.registry
+package cn.rtast.libmc.protocol.protocol.game.registry
 
 public enum class ClientAction(public val actionID: Int) {
     /**

libmc-protocol/src/commonMain/kotlin/cn/rtast/libmc/protocol/protocol/game/registry/GameDifficulty.kt

@@ -5,7 +5,7 @@
  */
 
 
-package cn.rtast.libmc.protocol.registry
+package cn.rtast.libmc.protocol.protocol.game.registry
 
 public enum class GameDifficulty(public val id: Byte) {
     Peaceful(0),

libmc-protocol/src/commonMain/kotlin/cn/rtast/libmc/protocol/protocol/game/registry/report/BuiltinServerLinkType.kt

@@ -5,7 +5,7 @@
  */
 
 
-package cn.rtast.libmc.protocol.registry.report
+package cn.rtast.libmc.protocol.protocol.game.registry.report
 
 public enum class BuiltinServerLinkType(public val id: Int) {
     BUG_REPORT(0),

libmc-protocol/src/commonMain/kotlin/cn/rtast/libmc/protocol/protocol/game/registry/report/ServerLink.kt

@@ -5,17 +5,17 @@
  */
 
 
-package cn.rtast.libmc.protocol.registry.report
+package cn.rtast.libmc.protocol.protocol.game.registry.report
 
 import cn.rtast.libmc.packet.PacketCodec
 import cn.rtast.libmc.primitives.readMcString
 import cn.rtast.libmc.primitives.readVarInt
 import cn.rtast.libmc.primitives.writeMcString
 import cn.rtast.libmc.primitives.writeVarInt
+import cn.rtast.libmc.protocol.protocol.game.chat.TextComponent
+import cn.rtast.libmc.protocol.protocol.game.chat.readTextComponent
+import cn.rtast.libmc.protocol.protocol.game.chat.writeTextComponent
 import cn.rtast.libmc.stream.BytesBuffer
-import cn.rtast.libmc.nbt.NBTCompound
-import cn.rtast.libmc.protocol.protocol.util.readNetworkNBTCompound
-import cn.rtast.libmc.protocol.protocol.util.writeNetworkNBTCompound
 
 public data class ServerLink(val label: ServerLinkLabel, val url: String) {
     internal companion object Codec : PacketCodec<ServerLink> {
@@ -28,7 +28,7 @@ public data class ServerLink(val label: ServerLinkLabel, val url: String) {
 
                 is ServerLinkLabel.Custom -> {
                     buffer.writeBoolean(false)
-                    buffer.writeNetworkNBTCompound(value.label.text)
+                    buffer.writeTextComponent(value.label.text)
                 }
             }
             buffer.writeMcString(value.url)
@@ -37,7 +37,7 @@ public data class ServerLink(val label: ServerLinkLabel, val url: String) {
         override suspend fun decode(buffer: BytesBuffer): ServerLink {
             val isBuiltin = buffer.readBoolean()
             val label = if (isBuiltin) ServerLinkLabel.Builtin(BuiltinServerLinkType.fromID(buffer.readVarInt()))
-            else ServerLinkLabel.Custom(buffer.readNetworkNBTCompound())
+            else ServerLinkLabel.Custom(buffer.readTextComponent())
             val url = buffer.readMcString()
             return ServerLink(label, url)
         }
@@ -46,5 +46,5 @@ public data class ServerLink(val label: ServerLinkLabel, val url: String) {
 
 public sealed interface ServerLinkLabel {
     public data class Builtin(val type: BuiltinServerLinkType) : ServerLinkLabel
-    public data class Custom(val text: NBTCompound) : ServerLinkLabel
+    public data class Custom(val text: TextComponent) : ServerLinkLabel
 }

libmc-protocol/src/commonMain/kotlin/cn/rtast/libmc/protocol/protocol/game/scoreboard/ObjectivePayload.kt

@@ -7,12 +7,12 @@
 
 package cn.rtast.libmc.protocol.protocol.game.scoreboard
 
-import cn.rtast.libmc.nbt.NBTCompound
+import cn.rtast.libmc.protocol.protocol.game.chat.TextComponent
 
 public sealed interface ObjectivePayload {
     public object Remove : ObjectivePayload
     public data class Upsert(
-        val displayName: NBTCompound,
+        val displayName: TextComponent,
         val renderType: ObjectiveRenderType,
         val defaultNumberFormat: ScoreNumberFormat?,
     ) : ObjectivePayload

libmc-protocol/src/commonMain/kotlin/cn/rtast/libmc/protocol/protocol/game/scoreboard/ScoreNumberFormat.kt

@@ -7,11 +7,11 @@
 
 package cn.rtast.libmc.protocol.protocol.game.scoreboard
 
-import cn.rtast.libmc.nbt.NBTCompound
 import cn.rtast.libmc.nbt.NBTTag
+import cn.rtast.libmc.protocol.protocol.game.chat.TextComponent
 
 public sealed interface ScoreNumberFormat {
     public object Blank : ScoreNumberFormat
     public data class Styled(val styling: NBTTag.CompoundTag) : ScoreNumberFormat
-    public data class Fixed(val content: NBTCompound) : ScoreNumberFormat
+    public data class Fixed(val content: TextComponent) : ScoreNumberFormat
 }

libmc-protocol/src/commonMain/kotlin/cn/rtast/libmc/protocol/protocol/game/session/GameProfile.kt

@@ -5,7 +5,7 @@
  */
 
 
-package cn.rtast.libmc.protocol.session
+package cn.rtast.libmc.protocol.protocol.game.session
 
 import cn.rtast.libmc.packet.PacketCodec
 import cn.rtast.libmc.primitives.readMcString

libmc-protocol/src/commonMain/kotlin/cn/rtast/libmc/protocol/util/TransactionIdManager.kt

@@ -5,7 +5,7 @@
  */
 
 
-package cn.rtast.libmc.protocol.session
+package cn.rtast.libmc.protocol.util
 
 import kotlinx.coroutines.sync.Mutex
 import kotlinx.coroutines.sync.withLock

libmc-protocol/src/jvmTest/kotlin/test/TestClientTestInJvm.kt

@@ -7,18 +7,17 @@
 
 package test
 
-import cn.rtast.libmc.crypto.AuthenticationProvider
-import cn.rtast.libmc.crypto.RSA1024Encryptor
-import cn.rtast.libmc.crypto.Sha1Hasher
 import cn.rtast.libmc.protocol.client.createMinecraftClient
 import cn.rtast.libmc.protocol.crypto.DefaultProtocolContext
+import cn.rtast.libmc.protocol.packet.play.clientbound.ClientboundCommandsPacket
+import cn.rtast.libmc.protocol.packet.play.clientbound.ClientboundDisconnectPlayPacket
+import cn.rtast.libmc.protocol.packet.play.clientbound.ClientboundDisguisedChatMessagePacket
+import cn.rtast.libmc.protocol.packet.play.clientbound.ClientboundSystemChatMessagePacket
 import cn.rtast.libmc.protocol.util.generateOfflineUuid
 import kotlinx.coroutines.launch
 import org.junit.Test
 import java.io.File
 import java.math.BigInteger
-import java.net.HttpURLConnection
-import java.net.URL
 import java.security.KeyFactory
 import java.security.MessageDigest
 import java.security.spec.X509EncodedKeySpec
@@ -64,24 +63,9 @@ class TestClientTestInJvm {
             accessToken,
             crypto = DefaultProtocolContext
         )
-//        {
-//            rsaEncryptor = RSA1024Encryptor { key, data -> encrypt(key, data) }
-//            sha1Hasher =
-//                Sha1Hasher { serverId, secretKey, publicKey -> minecraftServerIdHash(serverId, secretKey, publicKey) }
-//            cipherFactory = { key -> JvmAesCipher(key) }
-//            authProvider = AuthenticationProvider { url, accessToken, uuid, serverIdHash ->
-//                val connection = URL(url).openConnection() as HttpURLConnection
-//                connection.requestMethod = "POST"
-//                connection.doOutput = true
-//                connection.setRequestProperty("Content-Type", "application/json")
-//                connection.getOutputStream()
-//                    .use { it.write("{\"accessToken\":\"$accessToken\", \"selectedProfile\":\"$uuid\", \"serverId\":\"$serverIdHash\"}".encodeToByteArray()) }
-//                connection.disconnect()
-//            }
-//        }
 //        cli.onPacket<ClientboundSystemChatMessagePacket> { println(it) }
 //        cli.onPacket<ClientboundLoginSuccessPacket> { println(it) }
-        cli.on { packet, direction -> println("${direction} -> $packet") }
+        cli.on { packet, direction -> println("$direction -> $packet") }
         cli.launch { cli.connect() }
         while (true) {
         }
@@ -95,29 +79,10 @@ class TestClientTestInJvm {
             "11",
             generateOfflineUuid("11"),
             null,
-        ) {
+            crypto = DefaultProtocolContext
-            rsaEncryptor = RSA1024Encryptor { key, data -> encrypt(key, data) }
+        )
-            sha1Hasher =
+//        cli.on { packet, direction -> println("$direction -> $packet") }
-                Sha1Hasher { serverId, secretKey, publicKey ->
+        cli.onPacket<ClientboundSystemChatMessagePacket> { println(it.content.content) }
-                    minecraftServerIdHash(
-                        serverId,
-                        secretKey,
-                        publicKey
-                    )
-                }
-            cipherFactory = { key -> JvmAesCipher(key) }
-//            authProvider = AuthenticationProvider { url, accessToken, uuid, serverIdHash ->
-//                val connection = URL(url).openConnection() as HttpURLConnection
-//                connection.requestMethod = "POST"
-//                connection.doOutput = true
-//                connection.setRequestProperty("Content-Type", "application/json")
-//                connection.getOutputStream()
-//                    .use { it.write("{\"accessToken\":\"$accessToken\", \"selectedProfile\":\"$uuid\", \"serverId\":\"$serverIdHash\"}".encodeToByteArray()) }
-//                connection.disconnect()
-//            }
-        }
-//        cli.on<ClientboundSystemChatMessagePacket> { println(it) }
-//        cli.on<ClientboundLoginSuccessPacket> { println(it) }
         cli.launch { cli.connect() }
         while (true) {
         }