tsinsim/dist/src/packets/utilities/unpack.js

An InSim library for Node.js (JavaScript runtime environment) with TypeScript support.

import parseLFSMessage from 'parse-lfs-message';
import { Vector3 } from '../../utilities/vector.js';
export const PacketUnpack = (vk, buffer) => {
    const data = {};
    var offset = 0;
    for (const key of Object.keys(vk)) {
        const type = vk[key].type;
        const length = vk[key].length;
        if (type != 'char') {
            if (type == 'byte') {
                data[key] = buffer.readUInt8(offset);
            }
            else if (type == 'word') {
                data[key] = buffer.readUInt16LE(offset);
            }
            else if (type == 'short') {
                data[key] = buffer.readInt16LE(offset);
            }
            else if (type == 'int') {
                data[key] = buffer.readInt32LE(offset);
            }
            else if (type == 'unsigned') {
                data[key] = buffer.readUInt32LE(offset);
            }
            else if (type == 'float') {
                data[key] = buffer.readFloatLE(offset);
            }
            else if (type == 'vector') {
                data[key] = new Vector3(buffer.readFloatLE(offset), buffer.readFloatLE(offset + 4), buffer.readFloatLE(offset + 8));
            }
            else if (type == 'vec') {
                data[key] = new Vector3(buffer.readInt32LE(offset), buffer.readInt32LE(offset + 4), buffer.readInt32LE(offset + 8));
            }
        }
        else {
            if (type == 'char') {
                data[key] = parseLFSMessage(buffer.subarray(offset, offset + length));
            }
        }
        offset += length;
    }
    return data;
};