Fix some ESLint errors

error.log

@@ -0,0 +1,39 @@
+TypeError: NitroBundle_1.default is not a constructor
+TypeError: NitroBundle_1.default is not a constructor
+TypeError: NitroBundle_1.default is not a constructor
+TypeError: NitroBundle_1.default is not a constructor
+TypeError: zlib_1.gzip.__promisify__ is not a function
+TypeError: zlib_1.gzip.__promisify__ is not a function
+TypeError: zlib_1.gzip.__promisify__ is not a function
+TypeError: zlib_1.gzip.__promisify__ is not a function
+TypeError: zlib_1.gzip.__promisify__ is not a function
+TypeError: zlib_1.gzip.__promisify__ is not a function
+TypeError: zlib_1.gzip.__promisify__ is not a function
+TypeError: zlib_1.gzip.__promisify__ is not a function
+TypeError: zlib_1.gzip.__promisify__ is not a function
+TypeError: zlib_1.gzip.__promisify__ is not a function
+TypeError: zlib_1.gzip.__promisify__ is not a function
+TypeError: zlib_1.gzip.__promisify__ is not a function
+TypeError: zlib_1.gzip.__promisify__ is not a function
+TypeError: zlib_1.gzip.__promisify__ is not a function
+TypeError: zlib_1.gzip.__promisify__ is not a function
+TypeError: zlib_1.gzip.__promisify__ is not a function
+TypeError: zlib_1.gzip.__promisify__ is not a function
+TypeError: zlib_1.gzip.__promisify__ is not a function
+TypeError: zlib_1.gzip.__promisify__ is not a function
+TypeError: zlib_1.gzip.__promisify__ is not a function
+TypeError: zlib_1.gzip.__promisify__ is not a function
+TypeError: zlib_1.gzip.__promisify__ is not a function
+TypeError: zlib_1.gzip.__promisify__ is not a function
+TypeError: zlib_1.gzip.__promisify__ is not a function
+TypeError: zlib_1.gzip.__promisify__ is not a function
+TypeError: zlib_1.gzip.__promisify__ is not a function
+TypeError: zlib_1.gzip.__promisify__ is not a function
+TypeError: zlib_1.gzip.__promisify__ is not a function
+TypeError: zlib_1.gzip.__promisify__ is not a function
+TypeError: zlib_1.gzip.__promisify__ is not a function
+TypeError: zlib_1.gzip.__promisify__ is not a function
+TypeError: zlib_1.gzip.__promisify__ is not a function
+TypeError: zlib_1.gzip.__promisify__ is not a function
+TypeError: zlib_1.gzip.__promisify__ is not a function
+TypeError: zlib_1.gzip.__promisify__ is not a function

src/common/bundle/BundleProvider.ts

@@ -53,7 +53,7 @@ export class BundleProvider
                     }
 
                     if(isProhibited) continue;
-                    
+
                     BundleProvider.imageSource.set(names[i].substring(habboAssetSWF.getDocumentClass().length + 1), imageTag.className.substring(habboAssetSWF.getDocumentClass().length + 1));
 
                     images.push({

src/common/converters/SWFConverter.ts

@@ -24,7 +24,7 @@ export class SWFConverter
         const binaryData = SWFConverter.getBinaryData(habboAssetSWF, paletteName, false);
 
         if(!binaryData || !binaryData.binaryDataBuffer) return null;
-        
+
         const byteBuffer = wrap(binaryData.binaryDataBuffer);
 
         const paletteColors: [ number, number, number ][] = [];
@@ -69,7 +69,7 @@ export class SWFConverter
         const binaryData = SWFConverter.getBinaryData(habboAssetSWF, 'assets', true);
 
         if(!binaryData) return null;
-        
+
         return await parseStringPromise(binaryData.binaryData);
     }
 
@@ -78,7 +78,7 @@ export class SWFConverter
         const binaryData = SWFConverter.getBinaryData(habboAssetSWF, 'logic', true);
 
         if(!binaryData) return null;
-        
+
         return await parseStringPromise(binaryData.binaryData);
     }
 
@@ -87,7 +87,7 @@ export class SWFConverter
         const binaryData = SWFConverter.getBinaryData(habboAssetSWF, 'index', false);
 
         if(!binaryData) return null;
-        
+
         return await parseStringPromise(binaryData.binaryData);
     }
 
@@ -96,7 +96,7 @@ export class SWFConverter
         const binaryData = SWFConverter.getBinaryData(habboAssetSWF, 'visualization', true);
 
         if(!binaryData) return null;
-        
+
         return await parseStringPromise(binaryData.binaryData);
     }
 }

src/converters/furniture/FurnitureConverter.ts

@@ -10,7 +10,7 @@ import { AssetMapper, IndexMapper, LogicMapper, VisualizationMapper } from '../.
 import { HabboAssetSWF } from '../../swf/HabboAssetSWF';
 import File from '../../utils/File';
 import Logger from '../../utils/Logger';
-import NitroBundle from '../../utils/NitroBundle';
+import { NitroBundle } from '../../utils/NitroBundle';
 import { FurnitureDownloader } from './FurnitureDownloader';
 
 @singleton()

src/converters/furniture/FurnitureDownloader.ts

@@ -49,7 +49,7 @@ export class FurnitureDownloader
                             count ++;
                         }
 
-                        catch(error)
+                        catch (error)
                         {
                             console.log();
                             console.error(error);
@@ -76,7 +76,7 @@ export class FurnitureDownloader
                             await this.extractFurniture(revision, className, callback);
                         }
 
-                        catch(error)
+                        catch (error)
                         {
                             console.log();
                             console.error(error);
@@ -96,7 +96,7 @@ export class FurnitureDownloader
     public async parseFurniData(): Promise<IFurnitureData>
     {
         const url = this._configuration.getValue('furnidata.url');
- 
+
         if(!url || !url.length) return null;
 
         try
@@ -108,7 +108,7 @@ export class FurnitureDownloader
             return (JSON.parse(content) as IFurnitureData);
         }
 
-        catch(error)
+        catch (error)
         {
             console.log();
             console.error(error);
@@ -129,7 +129,7 @@ export class FurnitureDownloader
             const buffer = await FileUtilities.readFileAsBuffer(url);
 
             if(!buffer) return;
-            
+
             const newHabboAssetSWF = new HabboAssetSWF(buffer);
 
             await newHabboAssetSWF.setupAsync();

src/converters/pet/PetConverter.ts

@@ -10,7 +10,7 @@ import { AssetMapper, IndexMapper, LogicMapper, VisualizationMapper } from '../.
 import { HabboAssetSWF } from '../../swf/HabboAssetSWF';
 import File from '../../utils/File';
 import Logger from '../../utils/Logger';
-import NitroBundle from '../../utils/NitroBundle';
+import { NitroBundle } from '../../utils/NitroBundle';
 import { PetDownloader } from './PetDownloader';
 
 @singleton()

src/converters/pet/PetDownloader.ts

@@ -30,7 +30,7 @@ export class PetDownloader
                     await this.extractPet(petType, callback);
                 }
 
-                catch(error)
+                catch (error)
                 {
                     console.log();
                     console.error(error);
@@ -54,14 +54,14 @@ export class PetDownloader
             const petTypes: string[] = [];
 
             const pets = this._config.getValue('pet.configuration');
-    
+
             if(pets)
             {
                 const types = pets.split(',');
-    
+
                 for(const type of types) petTypes.push(type);
             }
-    
+
             return petTypes;
         }
 

src/mapping/mappers/asset/AssetMapper.ts

@@ -42,7 +42,7 @@ export class AssetMapper extends Mapper
             if(assetXML.name !== undefined)
             {
                 let isProhibited = false;
-                
+
                 for(const size of AssetMapper.PROHIBITED_SIZES)
                 {
                     if(assetXML.name.indexOf(('_' + size + '_')) >= 0)
@@ -73,7 +73,7 @@ export class AssetMapper extends Mapper
                     asset.source = BundleProvider.imageSource.get(assetXML.name) as string;
                 }
             }
-            
+
             if(assetXML.x !== undefined) asset.x = assetXML.x;
             if(assetXML.y !== undefined) asset.y = assetXML.y;
             if(assetXML.flipH !== undefined) asset.flipH = assetXML.flipH;

src/mapping/mappers/asset/VisualizationMapper.ts

@@ -32,7 +32,7 @@ export class VisualizationMapper extends Mapper
             if(visualizationDataXML.size !== undefined)
             {
                 let isProhibited = false;
-                
+
                 for(const size of VisualizationMapper.PROHIBITED_SIZES)
                 {
                     if(visualizationDataXML.size === parseInt(size))
@@ -45,7 +45,7 @@ export class VisualizationMapper extends Mapper
 
                 if(isProhibited) continue;
             }
-            
+
             const visualizationData: IAssetVisualizationData = {};
 
             if(visualizationDataXML.angle !== undefined) visualizationData.angle = visualizationDataXML.angle;
@@ -197,7 +197,7 @@ export class VisualizationMapper extends Mapper
     private static mapVisualizationAnimationXML(xml: AnimationXML[], output: { [index: string]: IAssetAnimation }): void
     {
         if(!xml || !xml.length) return;
-        
+
         for(const animationXML of xml)
         {
             const animation: IAssetAnimation = {};
@@ -313,7 +313,7 @@ export class VisualizationMapper extends Mapper
     {
         if(!xml || !xml.length) return;
 
-        let i = 0;
+        const i = 0;
 
         for(const offsetXML of xml)
         {

src/mapping/xml/furnidata/FurnitureTypeXML.ts

@@ -49,13 +49,13 @@ export class FurnitureTypeXML
 
             if(xml.partcolors)
             {
-                for(let key in xml.partcolors)
+                for(const key in xml.partcolors)
                 {
                     const colorData = xml.partcolors[key].color;
-                    
+
                     if(colorData)
                     {
-                        for(let color of colorData)
+                        for(const color of colorData)
                         {
                             let code = color;
 

src/swf/HabboAssetSWF.ts

@@ -41,8 +41,8 @@ export class HabboAssetSWF
                     console.log(tag);
                     break;
 
-                case 35:
+                case 35: {
-                    const jpegTag: any = await readImagesJPEG(35, tag);
+                    const jpegTag = await readImagesJPEG(35, tag);
                     this._tags.push(new ImageTag({
                         code: jpegTag.code,
                         characterID: jpegTag.characterId,
@@ -52,8 +52,9 @@ export class HabboAssetSWF
                         bitmapHeight: jpegTag.bitmapHeight
                     }));
                     break;
+                }
 
-                case 36:
+                case 36: {
                     const pngTag: any = await readImagesDefineBitsLossless(tag);
                     this._tags.push(new ImageTag({
                         code: pngTag.code,
@@ -64,6 +65,7 @@ export class HabboAssetSWF
                         bitmapHeight: pngTag.bitmapHeight
                     }));
                     break;
+                }
 
                 case 20:
                     console.log(tag);
@@ -103,9 +105,11 @@ export class HabboAssetSWF
 
         let iterator: CustomIterator<ITag> = new CustomIterator(this._tags);
 
+        // eslint-disable-next-line no-constant-condition
         while(true)
         {
             let t: ITag;
+
             do
             {
                 if(!iterator.hasNext())
@@ -184,6 +188,7 @@ export class HabboAssetSWF
 
         const iterator: CustomIterator<ITag> = new CustomIterator(this._tags);
 
+        // eslint-disable-next-line no-constant-condition
         while(true)
         {
             let t: ITag;

src/utils/CustomIterator.ts

@@ -39,6 +39,7 @@ export default class CustomIterator<TType>
             typeof candidate === 'object' &&
             typeof candidate.length === 'number' &&
             typeof candidate.splice === 'function' &&
+            // eslint-disable-next-line no-prototype-builtins
             !(candidate.propertyIsEnumerable('length'));
     }
 
@@ -63,4 +64,4 @@ export default class CustomIterator<TType>
     {
         return this.arr ? this.idx <= this.top : this.idx <= this.keys.length;
     }
-}
+}

src/utils/File.ts

@@ -1,6 +1,4 @@
-import { RmOptions } from 'fs';
+import { existsSync, lstatSync, mkdirSync, readdirSync, RmOptions, rmSync } from 'fs';
-
-const fs = require('fs');
 
 export default class File
 {
@@ -14,24 +12,24 @@ export default class File
 
     public exists(): boolean
     {
-        return fs.existsSync(this._path);
+        return existsSync(this._path);
     }
 
     public mkdirs(): void
     {
-        return fs.mkdirSync(this._path);
+        return mkdirSync(this._path);
     }
 
     public list(): string[]
     {
-        const test = fs.readdirSync(this._path);
+        const test = readdirSync(this._path);
 
         return test;
     }
 
     public isDirectory(): boolean
     {
-        return this.exists() && fs.lstatSync(this._path).isDirectory();
+        return this.exists() && lstatSync(this._path).isDirectory();
     }
 
     get path(): string
@@ -41,6 +39,6 @@ export default class File
 
     public rmdir(options: RmOptions): void
     {
-        return fs.rmSync(this._path, options);
+        return rmSync(this._path, options);
     }
 }

src/utils/FileUtilities.ts

@@ -29,7 +29,7 @@ export class FileUtilities
             return content;
         }
 
-        catch(error)
+        catch (error)
         {
             console.log();
             console.error(error);
@@ -60,7 +60,7 @@ export class FileUtilities
             return content;
         }
 
-        catch(error)
+        catch (error)
         {
             console.log();
             console.error(error);

src/utils/Logger.ts

@@ -1,23 +1,22 @@
+import { createWriteStream, existsSync } from 'fs';
+import { appendFile } from 'fs/promises';
 import { singleton } from 'tsyringe';
 
-const fs = require('fs');
-const fsAsync = require('fs/promises');
-
 @singleton()
 export default class Logger
 {
 
     constructor()
     {
-        if(!fs.existsSync('error.log'))
+        if(!existsSync('error.log'))
         {
-            const createStream = fs.createWriteStream('error.log');
+            const createStream = createWriteStream('error.log');
             createStream.end();
         }
     }
 
     public logErrorAsync(message: string): Promise<void>
     {
-        return fsAsync.appendFile('error.log', message + '\n');
+        return appendFile('error.log', message + '\n');
     }
-}
+}

src/utils/NitroBundle.ts

@@ -1,7 +1,7 @@
-const ByteBuffer = require('bytebuffer');
+import * as ByteBuffer from 'bytebuffer';
-const { gzip } = require('node-gzip');
+import { gzip } from 'zlib';
 
-export default class NitroBundle
+export class NitroBundle
 {
     private readonly _files: Map<string, Buffer>;
 
@@ -19,7 +19,7 @@ export default class NitroBundle
     {
         const buffer = new ByteBuffer();
 
-        buffer.writeUInt16(this._files.size);
+        buffer.writeUint16(this._files.size);
 
         const iterator = this._files.entries();
         let result: IteratorResult<[string, Buffer]> = iterator.next();
@@ -31,7 +31,7 @@ export default class NitroBundle
             buffer.writeUint16(fileName.length);
             buffer.writeString(fileName);
 
-            const compressed = await gzip(file);
+            const compressed = await gzip.__promisify__(file);
             buffer.writeUint32(compressed.length);
             buffer.append(compressed);
 
@@ -40,4 +40,4 @@ export default class NitroBundle
 
         return buffer.flip().toBuffer();
     }
-}
+}

src/utils/SlicedToArray.ts

@@ -5,7 +5,7 @@ export class SlicedToArray
         if(Array.isArray(arr)) return arr;
 
         if(Symbol.iterator in Object(arr)) return SlicedToArray.sliceIterator(arr, i);
-        
+
         throw new TypeError('Invalid attempt to destructure non-iterable instance');
     }
 

src/utils/SwfReader.ts

@@ -20,53 +20,75 @@ const _decoder = require('jpg-stream/decoder');
 
 const _decoder2 = _interopRequireDefault(_decoder);
 
-function _interopRequireDefault(obj: any) {
+function _interopRequireDefault(obj: any)
-    return obj && obj.__esModule ? obj : {default: obj};
+{
+    return obj && obj.__esModule ? obj : { default: obj };
 }
 
 const _concatFrames = require('concat-frames');
 
 const _concatFrames2 = _interopRequireDefault(_concatFrames);
 
-const _slicedToArray = function () {
+const _slicedToArray = function ()
-    function sliceIterator(arr: any, i: any) {
+{
-        var _arr = [];
+    function sliceIterator(arr: any, i: any)
-        var _n = true;
+    {
-        var _d = false;
+        const _arr = [];
-        var _e = undefined;
+        let _n = true;
-        try {
+        let _d = false;
-            for (var _i = arr[Symbol.iterator](), _s; !(_n = (_s = _i.next()).done); _n = true) {
+        let _e = undefined;
+        try
+        {
+            for(var _i = arr[Symbol.iterator](), _s; !(_n = (_s = _i.next()).done); _n = true)
+            {
                 _arr.push(_s.value);
-                if (i && _arr.length === i) break;
+                if(i && _arr.length === i) break;
             }
-        } catch (err) {
+        }
+        catch (err)
+        {
             _d = true;
             _e = err;
-        } finally {
+        }
-            try {
+        finally
-                if (!_n && _i["return"]) _i["return"]();
+        {
-            } finally {
+            try
-                if (_d) throw _e;
+            {
+                if(!_n && _i['return']) _i['return']();
+            }
+            finally
+            {
+                if(_d) throw _e;
             }
         }
         return _arr;
     }
 
-    return function (arr: any, i: any) {
+    return function (arr: any, i: any)
-        if (Array.isArray(arr)) {
+    {
+        if(Array.isArray(arr))
+        {
             return arr;
-        } else if (Symbol.iterator in Object(arr)) {
+        }
+        else if(Symbol.iterator in Object(arr))
+        {
             return sliceIterator(arr, i);
-        } else {
+        }
-            throw new TypeError("Invalid attempt to destructure non-iterable instance");
+        else
+        {
+            throw new TypeError('Invalid attempt to destructure non-iterable instance');
         }
     };
 }();
 
-export function readSwfAsync(data: string | Buffer): Promise<any> {
+export function readSwfAsync(data: string | Buffer): Promise<any>
-    return new Promise<any>(((resolve, reject) => {
+{
-        SWFReader.read(data, function (err: Error, swf: any) {
+    return new Promise<any>(((resolve, reject) =>
-            if (err) {
+    {
+        SWFReader.read(data, function (err: Error, swf: any)
+        {
+            if(err)
+            {
                 reject(err);
             }
             resolve(swf);
@@ -76,18 +98,21 @@ export function readSwfAsync(data: string | Buffer): Promise<any> {
 
 const pngMagic = Buffer.from('0x89 0x50 0x4E 0x47 0x0D 0x0A 0x1A 0x0A'.split(' ').map(Number));
 const gifMagic = Buffer.from('0x47 0x49 0x46 0x38 0x39 0x61'.split(' ').map(Number));
-const recognizeHeader = function recognizeHeader(buffer: Buffer) {
+const recognizeHeader = function recognizeHeader(buffer: Buffer)
-    if (pngMagic.equals(buffer.slice(0, pngMagic.length))) return 'png';
+{
-    if (gifMagic.equals(buffer.slice(0, gifMagic.length))) return 'gif';
+    if(pngMagic.equals(buffer.slice(0, pngMagic.length))) return 'png';
+    if(gifMagic.equals(buffer.slice(0, gifMagic.length))) return 'gif';
     return 'jpeg';
 };
 
-export async function readImagesJPEG(code: number, tagData: any): Promise<any> {
+export async function readImagesJPEG(code: number, tagData: any): Promise<any>
-    var characterId = tagData.characterId,
+{
+    const characterId = tagData.characterId,
         imageData = tagData.imageData;
 
-    var imgType = recognizeHeader(imageData);
+    const imgType = recognizeHeader(imageData);
-    if (imgType !== 'jpeg') {
+    if(imgType !== 'jpeg')
+    {
         return {
             code: code,
             characterId: characterId,
@@ -96,14 +121,17 @@ export async function readImagesJPEG(code: number, tagData: any): Promise<any> {
         };
     }
 
-    var bitmapAlphaData = tagData.bitmapAlphaData;
+    const bitmapAlphaData = tagData.bitmapAlphaData;
 
-    return new Promise(function (resolve, reject) {
+    return new Promise(function (resolve, reject)
-        var enc = new _encoder2.default(undefined, undefined, {colorSpace: 'rgba'});
+    {
-        _zlib2.default.unzip(bitmapAlphaData, function (err: any, alphaBufPre: any) {
+        const enc = new _encoder2.default(undefined, undefined, { colorSpace: 'rgba' });
+        _zlib2.default.unzip(bitmapAlphaData, function (err: any, alphaBufPre: any)
+        {
             // INVARIANT: alphaBuf is either null or a non-empty buffer
             let alphaBuf: any = null;
-            if (err) {
+            if(err)
+            {
                 /*
                    Due to a bug present in node zlib (https://github.com/nodejs/node/issues/17041)
                    unzipping an empty buffer can raise "unexpected end of file" error.
@@ -113,33 +141,41 @@ export async function readImagesJPEG(code: number, tagData: any): Promise<any> {
                    other two zlib.unzip call happens at sites that an empty uncompressed Buffer
                    does not make sense. So I think the current fix is good enough.
                  */
-                if (bitmapAlphaData.length > 0) {
+                if(bitmapAlphaData.length > 0)
+                {
                     return reject(new Error(err));
                 }
                 // leaving alphaBuf as null
-            } else {
-                // ensure alphaBuf is only assigned an non-empty Buffer
-                if (alphaBufPre.length > 0) alphaBuf = alphaBufPre;
             }
-            var bufferStream = new _stream2.default.PassThrough();
+            else
+            {
+                // ensure alphaBuf is only assigned an non-empty Buffer
+                if(alphaBufPre.length > 0) alphaBuf = alphaBufPre;
+            }
+            const bufferStream = new _stream2.default.PassThrough();
             bufferStream.end(imageData);
-            bufferStream.pipe(new _decoder2.default()).pipe((_concatFrames2.default)(function (_ref: any) {
+            bufferStream.pipe(new _decoder2.default()).pipe((_concatFrames2.default)(function (_ref: any)
-                var _ref2 = _slicedToArray(_ref, 1),
+            {
+                const _ref2 = _slicedToArray(_ref, 1),
                     frame = _ref2[0];
 
-                var input = frame.pixels;
+                const input = frame.pixels;
-                var pCount = frame.width * frame.height;
+                const pCount = frame.width * frame.height;
-                var output = Buffer.alloc(pCount * 4);
+                const output = Buffer.alloc(pCount * 4);
-                if (alphaBuf !== null && alphaBuf.length !== pCount) {
+                if(alphaBuf !== null && alphaBuf.length !== pCount)
+                {
                     console.error('expect alphaBuf to have size ' + pCount + ' while getting ' + alphaBuf.length);
                 }
-                var getAlphaBuf = alphaBuf === null ? function (_ignored: any) {
+                const getAlphaBuf = alphaBuf === null ? function (_ignored: any)
+                {
                     return 0xff;
-                } : function (i: any) {
+                } : function (i: any)
+                {
                     return alphaBuf[i];
                 };
 
-                for (var i = 0; i < pCount; ++i) {
+                for(let i = 0; i < pCount; ++i)
+                {
                     output[4 * i] = input[3 * i];
                     output[4 * i + 1] = input[3 * i + 1];
                     output[4 * i + 2] = input[3 * i + 2];
@@ -150,8 +186,10 @@ export async function readImagesJPEG(code: number, tagData: any): Promise<any> {
                 enc.end(output);
             }));
         });
-        (_streamToArray2.default)(enc).then(function (parts: any) {
+        (_streamToArray2.default)(enc).then(function (parts: any)
-            var buffers = parts.map(function (part: any) {
+        {
+            const buffers = parts.map(function (part: any)
+            {
                 return Buffer.isBuffer(part) ? part : Buffer.from(part);
             });
             resolve({
@@ -173,7 +211,8 @@ export interface ImageTagData {
     bitmapHeight: number
 }
 
-export function readImagesDefineBitsLossless(tag: any) {
+export function readImagesDefineBitsLossless(tag: any)
+{
     const characterId = tag.characterId,
         bitmapFormat = tag.bitmapFormat,
         bitmapWidth = tag.bitmapWidth,
@@ -182,21 +221,27 @@ export function readImagesDefineBitsLossless(tag: any) {
         zlibBitmapData = tag.zlibBitmapData;
 
 
-    return new Promise(function (resolve, reject) {
+    return new Promise(function (resolve, reject)
-        const enc = new _encoder2.default(bitmapWidth, bitmapHeight, {colorSpace: 'rgba'});
+    {
+        const enc = new _encoder2.default(bitmapWidth, bitmapHeight, { colorSpace: 'rgba' });
 
-        _zlib2.default.unzip(zlibBitmapData, function (err: any, dataBuf: any) {
+        _zlib2.default.unzip(zlibBitmapData, function (err: any, dataBuf: any)
-            if (err) {
+        {
+            if(err)
+            {
                 return reject(new Error(err));
             }
-            var output = Buffer.alloc(bitmapWidth * bitmapHeight * 4);
+            const output = Buffer.alloc(bitmapWidth * bitmapHeight * 4);
-            var index = 0;
+            let index = 0;
-            var ptr = 0;
+            let ptr = 0;
-            if (bitmapFormat === 5) {
+            if(bitmapFormat === 5)
+            {
                 // 32-bit ARGB image
-                for (var y = 0; y < bitmapHeight; ++y) {
+                for(let y = 0; y < bitmapHeight; ++y)
-                    for (var x = 0; x < bitmapWidth; ++x) {
+                {
-                        var alpha = dataBuf[ptr];
+                    for(let x = 0; x < bitmapWidth; ++x)
+                    {
+                        const alpha = dataBuf[ptr];
                         output[index] = dataBuf[ptr + 1] * (255 / alpha);
                         output[index + 1] = dataBuf[ptr + 2] * (255 / alpha);
                         output[index + 2] = dataBuf[ptr + 3] * (255 / alpha);
@@ -205,17 +250,22 @@ export function readImagesDefineBitsLossless(tag: any) {
                         ptr += 4;
                     }
                 }
-            } else if (bitmapFormat === 3) {
+            }
+            else if(bitmapFormat === 3)
+            {
                 // 8-bit colormapped image
-                var colorMap = [];
+                const colorMap = [];
-                for (var i = 0; i < bitmapColorTableSize + 1; ++i) {
+                for(let i = 0; i < bitmapColorTableSize + 1; ++i)
+                {
                     colorMap.push([dataBuf[ptr], dataBuf[ptr + 1], dataBuf[ptr + 2], dataBuf[ptr + 3]]);
                     ptr += 4;
                 }
-                for (var _y2 = 0; _y2 < bitmapHeight; ++_y2) {
+                for(let _y2 = 0; _y2 < bitmapHeight; ++_y2)
-                    for (var _x2 = 0; _x2 < bitmapWidth; ++_x2) {
+                {
-                        var idx = dataBuf[ptr];
+                    for(let _x2 = 0; _x2 < bitmapWidth; ++_x2)
-                        var color = idx < colorMap.length ? colorMap[idx] : [0, 0, 0, 0];
+                    {
+                        const idx = dataBuf[ptr];
+                        const color = idx < colorMap.length ? colorMap[idx] : [0, 0, 0, 0];
                         output[index] = color[0];
                         output[index + 1] = color[1];
                         output[index + 2] = color[2];
@@ -226,14 +276,18 @@ export function readImagesDefineBitsLossless(tag: any) {
                     // skip padding
                     ptr += (4 - bitmapWidth % 4) % 4;
                 }
-            } else {
+            }
+            else
+            {
                 return reject(new Error('unhandled bitmapFormat: ' + bitmapFormat));
             }
             enc.end(output);
         });
 
-        (_streamToArray2.default)(enc).then(function (parts: any) {
+        (_streamToArray2.default)(enc).then(function (parts: any)
-            var buffers = parts.map(function (part: any) {
+        {
+            const buffers = parts.map(function (part: any)
+            {
                 return Buffer.isBuffer(part) ? part : Buffer.from(part);
             });
             resolve({
@@ -245,7 +299,8 @@ export function readImagesDefineBitsLossless(tag: any) {
                 bitmapHeight: bitmapHeight
             });
         });
-    }).catch(function (e) {
+    }).catch(function (e)
+    {
         console.error(e);
     });
 }