package cc.maxmc.servux.util

import io.netty.buffer.ByteBuf
import io.netty.buffer.ByteBufOutputStream
import io.netty.handler.codec.EncoderException
import net.minecraft.nbt.NBTCompressedStreamTools
import net.minecraft.nbt.NBTTagCompound
import java.io.IOException

fun ByteBuf.writeVarInt(value: Int): ByteBuf {
    var value = value
    while (value and -128 != 0) {
        this.writeByte(value and 127 or 128)
        value = value ushr 7
    }
    this.writeByte(value)
    return this
}

fun ByteBuf.writeNBT(compound: NBTTagCompound?): ByteBuf {
    if (compound == null) {
        this.writeByte(0)
    } else {
        try {
            NBTCompressedStreamTools.write(compound, ByteBufOutputStream(this))
        } catch (var3: IOException) {
            throw EncoderException(var3)
        }
    }
    return this
}