@jsprismarine/prismarine/dist/network/NetworkUtil.es.js

Dedicated Minecraft Bedrock Edition server written in TypeScript

import { Vector3 } from '@jsprismarine/math';
import BlockPosition from '../world/BlockPosition.es.js';

class NetworkUtil {
  static readString(stream) {
    const length = stream.readUnsignedVarInt();
    return stream.read(length).toString("utf-8");
  }
  static writeString(stream, str) {
    const buffer = Buffer.from(str, "utf-8");
    stream.writeUnsignedVarInt(buffer.byteLength);
    stream.write(buffer);
  }
  static readLELengthASCIIString(stream) {
    const strLen = stream.readUnsignedIntLE();
    const str = stream.read(strLen).toString("ascii");
    return str;
  }
  static writeLELengthASCIIString(stream, str) {
    const buf = Buffer.from(str, "ascii");
    stream.writeUnsignedIntLE(buf.byteLength);
    stream.write(buf);
  }
  /**
   * Serialize a `Vector3` instance into a `BinaryStream`.
   * @param {BinaryStream} stream - The network stream.
   * @param {Vector3} vec - The vector to serialize.
   */
  static writeVector3(stream, vec) {
    if (!vec) {
      NetworkUtil.writeVector3(stream, Vector3.ZERO);
      return;
    }
    stream.writeFloatLE(vec.getX());
    stream.writeFloatLE(vec.getY());
    stream.writeFloatLE(vec.getZ());
  }
  /**
   * Deserialize a `Vector3` from a `BinaryStream`.
   * @param {BinaryStream} stream - The network stream.
   * @returns {Vector3} The deserialized `Vector3`.
   */
  static readVector3(stream) {
    return new Vector3(stream.readFloatLE(), stream.readFloatLE(), stream.readFloatLE());
  }
  /**
   * Serialize a `BlockPosition` instance into a `BinaryStream`.
   * @param {BinaryStream} stream - The network stream.
   * @param {BlockPosition} pos - The block position to serialize.
   */
  static writeBlockPosition(stream, pos) {
    stream.writeVarInt(pos.getX());
    stream.writeVarInt(pos.getY());
    stream.writeVarInt(pos.getZ());
  }
  /**
   * Serialize a `BlockPosition` instance into a `BinaryStream`.
   * @param {BinaryStream} stream - The network stream.
   * @param {BlockPosition} pos - The block position to serialize.
   */
  static writeUnsignedBlockPosition(stream, pos) {
    stream.writeVarInt(pos.getX());
    stream.writeUnsignedVarInt(pos.getY());
    stream.writeVarInt(pos.getZ());
  }
  /**
   * Deserialize a `BlockPosition` from a `BinaryStream`.
   * @param {BinaryStream} stream - The network stream.
   * @returns {BlockPosition} The deserialized `BlockPosition`.
   */
  static readBlockPosition(stream) {
    return new BlockPosition(stream.readVarInt(), stream.readUnsignedVarInt(), stream.readVarInt());
  }
}

export { NetworkUtil };
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