Fix network nbt reader

libmc-common/src/commonMain/kotlin/cn/rtast/libmc/common/buffer.kt

@@ -27,6 +27,7 @@ public expect class BytesBuffer {
     public fun readLong(endian: ByteOrder = ByteOrder.BIG_ENDIAN): Long
     public fun readBytes(length: Int): ByteArray
     public fun readBoolean(): Boolean
+    public fun readRemainingBytes(): ByteArray
 
     public fun toByteArray(): ByteArray
     public fun hasRemaining(): Boolean

libmc-common/src/commonMain/kotlin/cn/rtast/libmc/common/packet/PacketRegistry.kt

@@ -29,13 +29,8 @@ public class PacketRegistry {
         register(id, T::class, codec)
     }
 
-    public fun decodePacket(packetId: Int, buffer: BytesBuffer): MinecraftPacket {
-        val codec = idToCodec[packetId]
-        if (codec != null) return codec.decode(buffer) else {
-//            println("Ignored unknown packet 0x${packetId.toString(16).uppercase()}")
-            return UnknownPacket(packetId, buffer.readBytes(buffer.remaining.toInt()))
-        }
-    }
+    public fun decodePacket(packetId: Int, buffer: BytesBuffer): MinecraftPacket =
+        idToCodec[packetId]?.decode(buffer) ?: UnknownPacket(packetId, buffer.readBytes(buffer.remaining.toInt()))
 
     public fun <T : MinecraftPacket> encodePacket(buffer: BytesBuffer, packet: T) {
         @Suppress("UNCHECKED_CAST")

libmc-common/src/jvmMain/kotlin/cn/rtast/libmc/common/buffer.jvm.kt

@@ -93,6 +93,12 @@ public actual class BytesBuffer {
 
     public actual fun readBoolean(): Boolean = this.readByte() != 0x00.toByte()
 
+    public actual fun readRemainingBytes(): ByteArray {
+        val array = ensureReadArray()
+        if (readOffset >= array.size) return byteArrayOf()
+        return array.copyOfRange(readOffset, array.size)
+    }
+
     public actual fun toByteArray(): ByteArray = outStream.toByteArray()
     public actual fun hasRemaining(): Boolean = readOffset < ensureReadArray().size
 

libmc-common/src/nativeMain/kotlin/cn/rtast/libmc/common/buffer.native.kt

@@ -60,6 +60,7 @@ public actual class BytesBuffer {
 
     public actual fun readBytes(length: Int): ByteArray = _delegateBuf.readByteArray(length)
     public actual fun readBoolean(): Boolean = _delegateBuf.readByte() != 0x00.toByte()
+    public actual fun readRemainingBytes(): ByteArray = this.toByteArray()
 
     public actual fun toByteArray(): ByteArray {
         val copy = _delegateBuf.peek()