node-metaverse/lib/classes/messages/ObjectUpdateCompressed.ts

// This file has been automatically generated by writeMessageClasses.js

import * as Long from 'long';
import { MessageFlags } from '../../enums/MessageFlags';
import { MessageBase } from '../MessageBase';
import { Message } from '../../enums/Message';

export class ObjectUpdateCompressedMessage implements MessageBase
{
    name = 'ObjectUpdateCompressed';
    messageFlags = MessageFlags.Trusted | MessageFlags.FrequencyHigh;
    id = Message.ObjectUpdateCompressed;

    RegionData: {
        RegionHandle: Long;
        TimeDilation: number;
    };
    ObjectData: {
        UpdateFlags: number;
        Data: Buffer;
    }[];

    getSize(): number
    {
        return this.calculateVarVarSize(this.ObjectData, 'Data', 2) + ((4) * this.ObjectData.length) + 11;
    }

    calculateVarVarSize(block: { [key: string]: any }[], paramName: string, extraPerVar: number): number
    {
        let size = 0;
        for (const bl of block)
        {
            size += bl[paramName].length + extraPerVar;
        }
        return size;
    }

    // @ts-ignore
    writeToBuffer(buf: Buffer, pos: number): number
    {
        const startPos = pos;
        buf.writeInt32LE(this.RegionData['RegionHandle'].low, pos);
        pos += 4;
        buf.writeInt32LE(this.RegionData['RegionHandle'].high, pos);
        pos += 4;
        buf.writeUInt16LE(this.RegionData['TimeDilation'], pos);
        pos += 2;
        const count = this.ObjectData.length;
        buf.writeUInt8(this.ObjectData.length, pos++);
        for (let i = 0; i < count; i++)
        {
            buf.writeUInt32LE(this.ObjectData[i]['UpdateFlags'], pos);
            pos += 4;
            buf.writeUInt16LE(this.ObjectData[i]['Data'].length, pos);
            pos += 2;
            this.ObjectData[i]['Data'].copy(buf, pos);
            pos += this.ObjectData[i]['Data'].length;
        }
        return pos - startPos;
    }

    // @ts-ignore
    readFromBuffer(buf: Buffer, pos: number): number
    {
        const startPos = pos;
        let varLength = 0;
        const newObjRegionData: {
            RegionHandle: Long,
            TimeDilation: number
        } = {
            RegionHandle: Long.ZERO,
            TimeDilation: 0
        };
        newObjRegionData['RegionHandle'] = new Long(buf.readInt32LE(pos), buf.readInt32LE(pos + 4));
        pos += 8;
        newObjRegionData['TimeDilation'] = buf.readUInt16LE(pos);
        pos += 2;
        this.RegionData = newObjRegionData;
        if (pos >= buf.length)
        {
            return pos - startPos;
        }
        const count = buf.readUInt8(pos++);
        this.ObjectData = [];
        for (let i = 0; i < count; i++)
        {
            const newObjObjectData: {
                UpdateFlags: number,
                Data: Buffer
            } = {
                UpdateFlags: 0,
                Data: Buffer.allocUnsafe(0)
            };
            newObjObjectData['UpdateFlags'] = buf.readUInt32LE(pos);
            pos += 4;
            varLength = buf.readUInt16LE(pos);
            pos += 2;
            newObjObjectData['Data'] = buf.slice(pos, pos + varLength);
            pos += varLength;
            this.ObjectData.push(newObjObjectData);
        }
        return pos - startPos;
    }
}