remove flow types - it was inconsistently used and therefore pointless

.gitignore

@@ -4,6 +4,7 @@ output.webm
 utils/ocean-tiles/ocean
 utils/osm-tiles/osm
 i18n/*.mo
+test.js
 
 logs
 *.log

babel.config.js

@@ -2,8 +2,6 @@ const pkg = require('./package.json');
 
 module.exports = function (api) {
   const plugins = [
-    '@babel/plugin-transform-flow-strip-types',
-    '@babel/plugin-proposal-throw-expressions',
     // react-optimize
     '@babel/transform-react-constant-elements',
     '@babel/transform-react-inline-elements',

package.json

@@ -3,8 +3,7 @@
   "version": "1.0.0",
   "private": true,
   "engines": {
-    "node": ">=10.16.0",
-    "npm": ">=6.13.4"
+    "node": ">=14"
   },
   "description": "Unlimited planet canvas for placing pixels",
   "main": "server.js",
@@ -66,6 +65,7 @@
     "three-trackballcontrols": "^0.9.0",
     "ttag": "^1.7.24",
     "url-search-params-polyfill": "^8.1.1",
+    "whoiser": "^1.13.1",
     "winston": "^3.8.1",
     "winston-daily-rotate-file": "^4.5.5",
     "ws": "^8.4.0"
@@ -75,8 +75,6 @@
     "@babel/core": "^7.18.6",
     "@babel/eslint-parser": "^7.16.5",
     "@babel/node": "^7.18.6",
-    "@babel/plugin-proposal-throw-expressions": "^7.18.6",
-    "@babel/plugin-transform-flow-strip-types": "^7.18.6",
     "@babel/plugin-transform-react-constant-elements": "^7.18.6",
     "@babel/plugin-transform-react-inline-elements": "^7.18.6",
     "@babel/preset-env": "^7.18.6",

src/backup.js

@@ -6,7 +6,6 @@
  * also:
  * echo never > /sys/kernel/mm/transparent_hugepage/enabled
  *
- * @flow
  */
 
 /* eslint-disable no-console */
@@ -86,7 +85,7 @@ backupRedis.on('error', () => {
 });
 
 
-function runCmd(cmd: string) {
+function runCmd(cmd) {
   const startTime = Date.now();
   console.log(`Executing ${cmd}`);
   const cmdproc = spawn(cmd);

src/components/Alert.jsx

@@ -1,6 +1,5 @@
 /*
  *
- * @flow
  */
 
 import React, { useState, useEffect, useCallback } from 'react';

src/components/CanvasItem.jsx

@@ -1,6 +1,5 @@
 /**
  *
- * @flow
  */
 
 import React from 'react';

src/components/ChangeMail.jsx

@@ -1,6 +1,5 @@
 /*
  * Change Mail Form
- * @flow
  */
 
 import React, { useState } from 'react';

src/components/ChangeName.jsx

@@ -1,6 +1,5 @@
 /*
  * Change Name Form
- * @flow
  */
 
 import React, { useState } from 'react';

src/components/ChangePassword.jsx

@@ -1,6 +1,5 @@
 /*
  * Change Password Form
- * @flow
  */
 
 import React, { useState } from 'react';

src/components/ChatMessage.jsx

@@ -1,7 +1,3 @@
-/*
- *
- * @flow
- */
 import React from 'react';
 import { useSelector, useDispatch } from 'react-redux';
 

src/components/CoolDownBox.jsx

@@ -1,6 +1,5 @@
 /**
  *
- * @flow
  */
 
 import React from 'react';

src/components/CoordinatesBox.jsx

@@ -1,6 +1,5 @@
 /**
  *
- * @flow
  */
 
 import React from 'react';
@@ -11,7 +10,7 @@ import copy from '../utils/clipboard';
 import { notify } from '../store/actions';
 
 
-function renderCoordinates(cell): string {
+function renderCoordinates(cell) {
   return `(${cell.join(', ')})`;
 }
 

src/components/DailyRankings.jsx

@@ -1,6 +1,5 @@
 /*
  * Rankings Tabs
- * @flow
  */
 
 import React from 'react';

src/components/DeleteAccount.jsx

@@ -1,6 +1,5 @@
 /*
  * Change Password Form
- * @flow
  */
 
 import React, { useState } from 'react';

src/components/HistorySelect.jsx

@@ -1,6 +1,5 @@
 /*
  * LogIn Form
- * @flow
  */
 import React, {
   useState, useCallback, useRef,

src/components/LanguageSelect.jsx

@@ -5,7 +5,6 @@
  * Available languages under window.langSel
  *           [['hz', 'am'], ['de', 'de'], ...]
  *           [languageCode, countryCode (for flag)]
- * @flow
  */
 import React, { useState, useEffect } from 'react';
 import { t } from 'ttag';

src/components/LogInArea.jsx

@@ -1,5 +1,4 @@
 /*
- * @flow
  */
 import React from 'react';
 import { useDispatch } from 'react-redux';

src/components/LogInForm.jsx

@@ -1,6 +1,5 @@
 /*
  * LogIn Form
- * @flow
  */
 import React, { useState } from 'react';
 import { useDispatch } from 'react-redux';

src/components/Menu.jsx

@@ -1,7 +1,6 @@
 /*
  * Menu with Buttons on the top left
  *
- * @flow
  */
 
 import React, { useState, useEffect } from 'react';

src/components/Mobile3DControls.jsx

@@ -1,6 +1,5 @@
 /*
  *
- * @flow
  * Menu for WASD keys for mobile users
  */
 

src/components/ModalRoot.jsx

@@ -2,7 +2,6 @@
  *
  * https://stackoverflow.com/questions/35623656/how-can-i-display-a-modal-dialog-in-redux-that-performs-asynchronous-actions/35641680#35641680
  *
- * @flow
  */
 
 import React, { useState, useEffect } from 'react';

src/components/Modtools.jsx

@@ -1,6 +1,5 @@
 /*
  * Modtools
- * @flow
  */
 
 import React, { useState, useEffect } from 'react';

src/components/NotifyBox.jsx

@@ -1,8 +1,3 @@
-/**
- *
- * @flow
- */
-
 import React, { useState, useEffect } from 'react';
 import { useSelector } from 'react-redux';
 

src/components/OnlineBox.jsx

@@ -1,6 +1,5 @@
 /**
  *
- * @flow
  */
 
 import React from 'react';

src/components/Palette.jsx

@@ -1,6 +1,5 @@
 /**
  *
- * @flow
  */
 
 import React, { useState, useEffect } from 'react';

src/components/Rankings.jsx

@@ -1,6 +1,5 @@
 /*
  * Rankings Tabs
- * @flow
  */
 
 /* eslint-disable max-len */

src/components/SocialSettings.jsx

@@ -1,6 +1,5 @@
 /*
  * Change Mail Form
- * @flow
  */
 
 import React from 'react';

src/components/Style.jsx

@@ -1,6 +1,5 @@
 /*
  *
- * @flow
  */
 
 import React from 'react';

src/components/TotalRankings.jsx

@@ -1,6 +1,5 @@
 /*
  * Rankings Tabs
- * @flow
  */
 
 import React from 'react';

src/components/UI.jsx

@@ -1,6 +1,5 @@
 /**
  *
- * @flow
  */
 
 import React from 'react';

src/components/UserAreaContent.jsx

@@ -1,6 +1,5 @@
 /*
  * Menu to change user credentials
- * @flow
  */
 
 import React, { useState, useCallback } from 'react';

src/components/UserMessages.jsx

@@ -1,6 +1,5 @@
 /*
  * Messages on top of UserArea
- * @flow
  */
 import React, { useState } from 'react';
 import { useSelector } from 'react-redux';

src/components/Window.jsx

@@ -1,6 +1,5 @@
 /*
  * draw window
- * @flow
  */
 
 import React, {

src/components/WindowManager.jsx

@@ -1,6 +1,5 @@
 /*
  * draw windows
- * @flow
  */
 
 import React from 'react';

src/components/buttons/ChatButton.jsx

@@ -1,6 +1,5 @@
 /**
  *
- * @flow
  */
 
 import React, {
@@ -104,7 +103,7 @@ const ChatButton = () => {
         >⦿</div>
       )}
       <MdForum />
-    </div>: null
+    </div>
   );
 };
 

src/components/buttons/DownloadButton.jsx

@@ -1,6 +1,5 @@
 /**
  *
- * @flow
  */
 
 import React from 'react';

src/components/buttons/ExpandMenuButton.jsx

@@ -1,7 +1,6 @@
 /*
  * espand menu / show other menu buttons
  *
- * @flow
  */
 
 import React from 'react';

src/components/buttons/GlobeButton.jsx

@@ -1,6 +1,5 @@
 /**
  *
- * @flow
  */
 
 import React from 'react';

src/components/buttons/HelpButton.jsx

@@ -1,6 +1,5 @@
 /**
  *
- * @flow
  */
 
 import React from 'react';

src/components/buttons/LogInButton.jsx

@@ -1,6 +1,5 @@
 /**
  *
- * @flow
  */
 
 import React from 'react';

src/components/buttons/PalselButton.jsx

@@ -1,7 +1,6 @@
 /**
  *
  * Button to open/close palette
- * @flow
  */
 
 import React from 'react';

src/components/buttons/SettingsButton.jsx

@@ -1,6 +1,5 @@
 /**
  *
- * @flow
  */
 
 import React from 'react';

src/components/contextmenus/ChannelContextMenu.jsx

@@ -1,6 +1,5 @@
 /*
  *
- * @flow
  */
 
 import React, { useRef, useCallback } from 'react';

src/components/contextmenus/ChannelDropDown.jsx

@@ -1,7 +1,6 @@
 /*
  * Drop Down menu for Chat Channel selection
  *
- * @flow
  */
 
 import React, {

src/components/contextmenus/UserContextMenu.jsx

@@ -1,6 +1,5 @@
 /*
  *
- * @flow
  */
 
 import React, { useRef } from 'react';

src/components/windows/Archive.jsx

@@ -1,7 +1,3 @@
-/*
- * @flow
- */
-
 /* eslint-disable max-len */
 
 import React from 'react';

src/components/windows/CanvasSelect.jsx

@@ -1,6 +1,5 @@
 /**
  *
- * @flow
  */
 
 import React, { useCallback } from 'react';

src/components/windows/Chat.jsx

@@ -1,6 +1,5 @@
 /**
  *
- * @flow
  */
 
 import React, {

src/components/windows/ForgotPassword.jsx

@@ -1,6 +1,5 @@
 /*
  * Form for requesting password-reset mail
- * @flow
  */
 import React, { useState } from 'react';
 import { useDispatch } from 'react-redux';

src/components/windows/Register.jsx

@@ -1,6 +1,5 @@
 /*
  * SignUp Form to register new user by mail
- * @flow
  */
 
 import React, { useState } from 'react';

src/components/windows/Settings.jsx

@@ -1,6 +1,5 @@
 /**
  *
- * @flow
  */
 
 import React from 'react';

src/components/windows/UserArea.jsx

@@ -1,6 +1,5 @@
 /**
  *
- * @flow
  */
 
 import React, { Suspense } from 'react';

src/controls/PixelPainterControls.js

@@ -4,7 +4,6 @@
  * keycodes:
  * https://developer.mozilla.org/en-US/docs/Web/API/KeyboardEvent/key/Key_Values
  *
- * @flow
  */
 
 import {
@@ -31,7 +30,7 @@ import {
 } from '../core/utils';
 
 class PixelPlainterControls {
-  constructor(renderer, viewport: HTMLCanvasElement, curStore) {
+  constructor(renderer, viewport, curStore) {
     this.store = curStore;
     this.renderer = renderer;
     this.viewport = viewport;
@@ -101,7 +100,7 @@ class PixelPlainterControls {
     }, delta * 1000);
   }
 
-  onMouseDown(event: MouseEvent) {
+  onMouseDown(event) {
     event.preventDefault();
     document.activeElement.blur();
 
@@ -129,7 +128,7 @@ class PixelPlainterControls {
     }, 250);
   }
 
-  onMouseUp(event: MouseEvent) {
+  onMouseUp(event) {
     event.preventDefault();
 
     const { store } = this;
@@ -161,7 +160,7 @@ class PixelPlainterControls {
     store.dispatch(onViewFinishChange());
   }
 
-  static getTouchCenter(event: TouchEvent) {
+  static getTouchCenter(event) {
     switch (event.touches.length) {
       case 1: {
         const { pageX, pageY } = event.touches[0];
@@ -251,7 +250,7 @@ class PixelPlainterControls {
     );
   }
 
-  static getMultiTouchDistance(event: TouchEvent) {
+  static getMultiTouchDistance(event) {
     if (event.touches.length < 2) {
       return 1;
     }
@@ -262,7 +261,7 @@ class PixelPlainterControls {
     );
   }
 
-  onTouchStart(event: TouchEvent) {
+  onTouchStart(event) {
     event.preventDefault();
     event.stopPropagation();
     document.activeElement.blur();
@@ -292,7 +291,7 @@ class PixelPlainterControls {
     }
   }
 
-  onTouchEnd(event: TouchEvent) {
+  onTouchEnd(event) {
     event.preventDefault();
     event.stopPropagation();
 
@@ -328,7 +327,7 @@ class PixelPlainterControls {
     this.clearTabTimeout();
   }
 
-  onTouchMove(event: TouchEvent) {
+  onTouchMove(event) {
     event.preventDefault();
     event.stopPropagation();
 
@@ -384,7 +383,7 @@ class PixelPlainterControls {
     }
   }
 
-  onWheel(event: MouseEvent) {
+  onWheel(event) {
     event.preventDefault();
     document.activeElement.blur();
 
@@ -405,7 +404,7 @@ class PixelPlainterControls {
     this.scheduleOnViewFinishChange();
   }
 
-  onMouseMove(event: MouseEvent) {
+  onMouseMove(event) {
     event.preventDefault();
 
     const { clientX, clientY } = event;
@@ -503,7 +502,7 @@ class PixelPlainterControls {
     }
   }
 
-  onAuxClick(event: MouseEvent) {
+  onAuxClick(event) {
     const { which, clientX, clientY } = event;
     // middle mouse button
     if (which !== 2) {
@@ -519,7 +518,7 @@ class PixelPlainterControls {
     );
   }
 
-  onKeyUp(event: KeyboardEvent) {
+  onKeyUp(event) {
     switch (event.key) {
       case 'Shift':
       case 'CapsLock':
@@ -529,7 +528,7 @@ class PixelPlainterControls {
     }
   }
 
-  onKeyDown(event: KeyboardEvent) {
+  onKeyDown(event) {
     // ignore key presses if modal is open or chat is used
     if (event.target.nodeName === 'INPUT'
       || event.target.nodeName === 'TEXTAREA'

src/core/ChatMessageBuffer.js

@@ -2,7 +2,6 @@
  * Buffer for chatMessages for the server
  * it just buffers the msot recent 200 messages for each channel
  *
- * @flow
  */
 import Sequelize from 'sequelize';
 import logger from './logger';

src/core/ChatProvider.js

@@ -492,8 +492,8 @@ export class ChatProvider {
     message,
     channelId,
     id,
-    country: string = 'xx',
-    sendapi: boolean = true,
+    country = 'xx',
+    sendapi = true,
   ) {
     if (message.length > 250) {
       return;

src/core/Queue.js

@@ -1,74 +0,0 @@
-/* @flow */
-
-/**
- * Created by http://code.stephenmorley.org/javascript/queues/
- */
-
-class Queue<T> {
-  array: Array<T>;
-  offset: number;
-
-  constructor() {
-    this.array = [];
-    this.offset = 0;
-  }
-
-  /**
-   *
-   * @returns {number} the length of the queue.
-   */
-  getLength(): number {
-    return this.array.length - this.offset;
-  }
-
-  /**
-   * Returns true if the queue is empty, and false otherwise.
-   * @returns {boolean}
-   */
-  isEmpty(): boolean {
-    return this.array.length === 0;
-  }
-
-  /**
-   * Enqueues the specified item. The parameter is:
-   * @param item the item to enqueue
-   */
-  enqueue(item: T) {
-    this.array.push(item);
-  }
-
-  /**
-   *  Dequeues an item and returns it. If the queue is empty, the value
-   * 'undefined' is returned.
-   */
-  dequeue(): ?T {
-    // if the queue is empty, return immediately
-    if (this.isEmpty()) return null;
-
-    // store the item at the front of the queue
-    const item = this.array[this.offset];
-
-    // increment the first and remove the free space if necessary
-    this.offset += 1;
-    if (this.offset * 2 >= this.array.length) {
-      this.array = this.array.slice(this.offset);
-      this.offset = 0;
-    }
-
-    // return the dequeued item
-    return item;
-  }
-
-  /**
-   * Returns the item at the front of the queue (without dequeuing it). If the
-   * queue is empty then undefined is returned.
-   * @returns {*}
-   */
-  peek(): ?T {
-    if (this.isEmpty()) return null;
-
-    return this.array[this.offset];
-  }
-}
-
-export default Queue;

src/core/RpgEvent.js

@@ -2,7 +2,6 @@
  * This is an even that happens all 2h,
  * if the users complete, they will get rewarded by half the cooldown sitewide
  *
- * @flow
  */
 
 import logger from './logger';
@@ -66,17 +65,17 @@ function drawCross(centerCell, clr, style, radius) {
 
 
 class RpgEvent {
-  eventState: number;
-  eventTimestamp: number;
-  eventCenter: Array;
-  eventCenterC: Array;
-  eventArea: Array;
+  eventState; // number
+  eventTimestamp; // number
+  eventCenter; // Array
+  eventCenterC; // Array
+  eventArea; // Array
   // 0 if waiting
   // 1 if won
   // 2 if lost
-  success: boolean;
-  void: Object;
-  chatTimeout: number;
+  success; // boolean
+  void; // Object
+  chatTimeout; // number
 
   constructor() {
     this.eventState = -1;

src/core/config.js

@@ -1,4 +1,3 @@
-/* @flow */
 // general config that is also available from client code can be found in
 // src/core/constants.js
 import path from 'path';

src/core/constants.js

@@ -1,5 +1,4 @@
 /**
- * @flow
  */
 
 // canvas size (width and height) MUST be 256 * 4^n to be able to stick

src/core/exportGPL.js

@@ -1,6 +1,5 @@
 /*
  *
- * @flow
  */
 
 function appendNumberText(number) {

src/core/isProxy.js

@@ -1,7 +1,3 @@
-/**
- * @flow
- * */
-
 import fetch from '../utils/proxiedFetch';
 
 import redis from '../data/redis/client';
@@ -18,7 +14,7 @@ import { USE_PROXYCHECK } from './config';
  * @return true if proxy, false if not
  */
 // eslint-disable-next-line no-unused-vars
-async function getIPIntel(ip: string): Promise<boolean> {
+async function getIPIntel(ip) {
   // eslint-disable-next-line max-len
   const email = `${Math.random().toString(36).substring(8)}-${Math.random().toString(36).substring(4)}@gmail.com`;
   // eslint-disable-next-line max-len
@@ -33,8 +29,6 @@ async function getIPIntel(ip: string): Promise<boolean> {
       'User-Agent': 'Mozilla/5.0 (Windows NT 10.0; Win64; x64) AppleWebKit/537.36 (KHTML, like Gecko) Chrome/75.0.3770.100 Safari/537.36',
     },
   });
-  // TODO log response code
-  logger.debug('PROXYCHECK getipintel? %s', ip);
   if (!response.ok) {
     const text = await response.text();
     throw new Error(`PROXYCHECK getipintel not ok ${response.status}/${text}`);
@@ -52,7 +46,7 @@ async function getIPIntel(ip: string): Promise<boolean> {
  * @param ip IP to check
  * @return true if proxy, false if not
  */
-async function getProxyCheck(ip: string): Promise<boolean> {
+async function getProxyCheck(ip) {
   const url = `http://proxycheck.io/v2/${ip}?risk=1&vpn=1&asn=1`;
   logger.info('PROXYCHECK fetching proxycheck %s', url);
   const response = await fetch(url, {
@@ -70,37 +64,12 @@ async function getProxyCheck(ip: string): Promise<boolean> {
   return data.status === 'ok' && data[ip].proxy === 'yes';
 }
 
-/*
- * check shroomey if IP is proxy
- * NOTE: shroomey can not check IPv6
- * User random proxies for request, just to be sure
- * @param ip IP to check
- * @return true if proxy, false if not
- */
-async function getShroomey(ip: string): Promise<boolean> {
-  logger.info('PROXYCHECK fetching shroomey %s', ip);
-  // eslint-disable-next-line max-len
-  const response = await fetch(`http://www.shroomery.org/ythan/proxycheck.php?ip=${ip}`, {
-    headers: {
-      Accept: '*/*',
-      'Accept-Language': 'es-ES,es;q=0.8,en;q=0.6',
-      Referer: 'http://www.shroomery.org/',
-      // eslint-disable-next-line max-len
-      'User-Agent': 'Mozilla/5.0 (Windows NT 10.0; Win64; x64) AppleWebKit/537.36 (KHTML, like Gecko) Chrome/72.0.3626.121 Safari/537.36',
-    },
-  });
-  if (!response.ok) throw new Error('shroomery.org not ok');
-  const body = await response.text();
-  logger.info('PROXYCHECK fetch shroomey is proxy? %s %s', ip, body);
-  return body === 'Y';
-}
-
 /*
  * check MYSQL Blacklist table
  * @param ip IP to check
  * @return true if blacklisted
  */
-async function isBlacklisted(ip: string): Promise<boolean> {
+async function isBlacklisted(ip) {
   const count = await Blacklist
     .count({
       where: {
@@ -115,7 +84,7 @@ async function isBlacklisted(ip: string): Promise<boolean> {
  * @param ip IP to check
  * @return true if whitelisted
  */
-async function isWhitelisted(ip: string): Promise<boolean> {
+async function isWhitelisted(ip) {
   const count = await Whitelist
     .count({
       where: {
@@ -128,7 +97,7 @@ async function isWhitelisted(ip: string): Promise<boolean> {
 /*
  * dummy function to include if you don't want any proxycheck
  */
-async function dummy(): Promise<boolean> {
+async function dummy() {
   return false;
 }
 
@@ -167,13 +136,8 @@ async function withCache(f, ip) {
   const key = `isprox:${ipKey}`;
   const cache = await redis.get(key);
   if (cache) {
-    logger.debug('PROXYCHECK fetch isproxy from cache %s %s %s',
-      key,
-      cache,
-      typeof cache);
     return cache === 'y';
   }
-  logger.debug('PROXYCHECK fetch isproxy not from cache %s', key);
 
   // else make asynchronous ipcheck and assume no proxy in the meantime
   // use lock to just check three at a time
@@ -201,17 +165,13 @@ async function withCache(f, ip) {
   return false;
 }
 
-export function cheapDetector(ip: string): Promise<boolean> {
+export function cheapDetector(ip) {
   if (USE_PROXYCHECK) {
     return withCache(getProxyCheck, ip);
   }
   return withCache(dummy, ip);
 }
 
-export function strongDetector(ip: string): Promise<boolean> {
-  return withCache(getShroomey, ip);
-}
-
-export function blacklistDetector(ip: string): Promise<boolean> {
+export function blacklistDetector(ip) {
   return withCache(dummy, ip);
 }

src/core/logger.js

@@ -2,7 +2,6 @@
  *
  * http://tostring.it/2014/06/23/advanced-logging-with-nodejs/
  *
- * @flow
  */
 
 import { createLogger, format, transports } from 'winston';

src/core/me.js

@@ -3,7 +3,6 @@
  * Userdata that gets sent to the client on
  * various api endpoints.
  *
- * @flow
  */
 // eslint-disable-next-line import/no-unresolved
 import { getLocalicedCanvases } from '../canvasesDesc';

src/core/passport.js

@@ -1,7 +1,6 @@
 /**
  * https://scotch.io/tutorials/easy-node-authentication-linking-all-accounts-together#toc-linking-accounts-together
  *
- * @flow
  */
 
 import passport from 'passport';

src/core/ranking.js

@@ -1,6 +1,5 @@
 /*
  * timers and cron for account related actions
- * @flow
  */
 
 import Sequelize from 'sequelize';
@@ -13,7 +12,7 @@ import { MINUTE } from './constants';
 import { DailyCron } from '../utils/cron';
 
 class Ranks {
-  ranks: Array;
+  ranks; // Array
 
   constructor() {
     this.updateRanking = this.updateRanking.bind(this);

src/core/rollback.js

@@ -1,7 +1,6 @@
 /*
  * Rolls back an area of the canvas to a specific date
  *
- * @flow
  */
 
 // Tile creation is allowed to be slow
@@ -21,12 +20,12 @@ import { BACKUP_DIR } from './config';
 import canvases from './canvases.json';
 
 export default async function rollbackToDate(
-  canvasId: number,
-  x: number,
-  y: number,
-  width: number,
-  height: number,
-  date: string,
+  canvasId, // number
+  x, // number
+  y, // number
+  width, // number
+  height, // number
+  date, // string
 ) {
   if (!BACKUP_DIR) {
     return 0;

src/core/ttag.js

@@ -1,6 +1,5 @@
 /*
  * Provide translation serverside
- * @flow
  */
 import { TTag } from 'ttag';
 import cookie from 'cookie';

src/core/utils.js

@@ -173,7 +173,7 @@ export function getPixelFromChunkOffset(
   j,
   offset,
   canvasSize,
-  is3d: boolean = false,
+  is3d = false,
 ) {
   const tileSize = (is3d) ? THREE_TILE_SIZE : TILE_SIZE;
   const cx = offset % tileSize;
@@ -225,7 +225,7 @@ export function worldToScreen(
 
 export function durationToString(
   ms,
-  smallest: boolean = false,
+  smallest = false,
 ) {
   const seconds = Math.ceil(ms / 1000);
   let timestring;
@@ -297,7 +297,7 @@ export function colorFromText(str) {
 /*
  * sets a color into bright or dark mode
  */
-export function setBrightness(hex, dark: boolean = false) {
+export function setBrightness(hex, dark = false) {
   hex = hex.replace(/^\s*#|\s*$/g, '');
 
   if (hex.length === 3) {

src/core/voxExport.js

@@ -11,7 +11,6 @@
  * Reference:
  * https://github.com/ephtracy/voxel-model/blob/master/MagicaVoxel-file-format-vox.txt
  *
- * @flow
  */
 
 /*

src/data/User.js

@@ -4,7 +4,6 @@
  * loged in or not.
  * If user is not logged in, id = null
  *
- * @flow
  * */
 
 import { QueryTypes, Utils } from 'sequelize';
@@ -49,21 +48,21 @@ export const regUserQueryInclude = [{
 }];
 
 class User {
-  id: string;
-  ip: string;
-  wait: ?number;
-  regUser: Object;
-  channels: Object;
-  blocked: Array;
+  id; // string
+  ip; // string
+  wait; // ?number
+  regUser; // Object
+  channels; // Object
+  blocked; // Array
   /*
    * 0: nothing
    * 1: Admin
    * 2: Mod
    */
-  userlvl: number;
+  userlvl; // number
 
   constructor() {
-    // if id = null -> unregistered
+    // if id = 0 -> unregistered
     this.id = 0;
     this.regUser = null;
     this.ip = '127.0.0.1';
@@ -185,7 +184,7 @@ class User {
     return true;
   }
 
-  async getWait(canvasId: number): Promise<?number> {
+  async getWait(canvasId) {
     let ttl = await redis.pTTL(`cd:${canvasId}:ip:${this.ipSub}`);
     if (this.id) {
       const ttlid = await redis.pTTL(
@@ -199,7 +198,7 @@ class User {
     return wait;
   }
 
-  async incrementPixelcount(amount: number = 1): Promise<boolean> {
+  async incrementPixelcount(amount = 1) {
     const { id } = this;
     if (!id) return false;
     try {
@@ -213,7 +212,7 @@ class User {
     return true;
   }
 
-  async getTotalPixels(): Promise<number> {
+  async getTotalPixels() {
     const { id } = this;
     if (!id) return 0;
     if (this.userlvl === 1) return 100000;
@@ -244,7 +243,7 @@ class User {
     }
   }
 
-  async updateLogInTimestamp(): Promise<boolean> {
+  async updateLogInTimestamp() {
     if (!this.regUser) return false;
     try {
       await this.regUser.update({
@@ -256,7 +255,7 @@ class User {
     return true;
   }
 
-  getUserData(): Object {
+  getUserData() {
     const {
       id,
       userlvl,

src/data/sql/Channel.js

@@ -43,12 +43,12 @@ const Channel = sequelize.define('Channel', {
   updatedAt: false,
 
   getterMethods: {
-    lastTs(): number {
+    lastTs() {
       return new Date(this.lastMessage).valueOf();
     },
   },
   setterMethods: {
-    lastTs(ts: number) {
+    lastTs(ts) {
       this.setDataValue('lastMessage', new Date(ts).toISOString());
     },
   },

src/data/sql/RegUser.js

@@ -110,36 +110,36 @@ const RegUser = sequelize.define('User', {
   updatedAt: false,
 
   getterMethods: {
-    mailVerified(): boolean {
+    mailVerified() {
       return this.verified & 0x01;
     },
 
-    blockDm(): boolean {
+    blockDm() {
       return this.blocks & 0x01;
     },
 
-    isMod(): boolean {
+    isMod() {
       return this.roles & 0x01;
     },
   },
 
   setterMethods: {
-    mailVerified(num: boolean) {
+    mailVerified(num) {
       const val = (num) ? (this.verified | 0x01) : (this.verified & ~0x01);
       this.setDataValue('verified', val);
     },
 
-    blockDm(num: boolean) {
+    blockDm(num) {
       const val = (num) ? (this.blocks | 0x01) : (this.blocks & ~0x01);
       this.setDataValue('blocks', val);
     },
 
-    isMod(num: boolean) {
+    isMod(num) {
       const val = (num) ? (this.roles | 0x01) : (this.roles & ~0x01);
       this.setDataValue('roles', val);
     },
 
-    password(value: string) {
+    password(value) {
       if (value) this.setDataValue('password', generateHash(value));
     },
   },

src/routes/api/auth/change_mail.js

@@ -1,10 +1,7 @@
 /*
  * request password change
- * @flow
  */
 
-
-import type { Request, Response } from 'express';
 import mailProvider from '../../../core/mail';
 
 import { validatePassword, validateEMail } from '../../../utils/validation';
@@ -22,7 +19,7 @@ function validate(email, password, gettext) {
   return errors;
 }
 
-export default async (req: Request, res: Response) => {
+export default async (req, res) => {
   const { email, password } = req.body;
   const { t, gettext } = req.ttag;
   const errors = validate(email, password, gettext);

src/routes/api/auth/change_name.js

@@ -1,11 +1,8 @@
 /*
  * request password change
- * @flow
  */
 
 
-import type { Request, Response } from 'express';
-
 import socketEvents from '../../../socket/SocketEvents';
 import { RegUser } from '../../../data/sql';
 import { validateName } from '../../../utils/validation';
@@ -22,7 +19,7 @@ async function validate(oldname, name) {
   return null;
 }
 
-export default async (req: Request, res: Response) => {
+export default async (req, res) => {
   const { name } = req.body;
   const { user } = req;
 

src/routes/api/auth/change_passwd.js

@@ -1,11 +1,8 @@
 /*
  * request password change
- * @flow
  */
 
 
-import type { Request, Response } from 'express';
-
 import { validatePassword } from '../../../utils/validation';
 import { compareToHash } from '../../../utils/hash';
 
@@ -18,7 +15,7 @@ function validate(newPassword, gettext) {
   return errors;
 }
 
-export default async (req: Request, res: Response) => {
+export default async (req, res) => {
   const { newPassword, password } = req.body;
   const { t, gettext } = req.ttag;
   const errors = validate(newPassword, gettext);

src/routes/api/auth/index.js

@@ -1,8 +1,3 @@
-/**
- * @flow
- */
-
-
 import express from 'express';
 
 import logger from '../../../core/logger';

src/routes/api/auth/logout.js

@@ -1,10 +1,8 @@
 /*
  * logout
- * @flow
  */
-import type { Request, Response } from 'express';
 
-export default async (req: Request, res: Response) => {
+export default async (req, res) => {
   const { user } = req;
   const { t } = req.ttag;
   if (!user || !user.regUser) {

src/routes/api/auth/register.js

@@ -1,10 +1,3 @@
-/**
- *
- * @flow
- */
-
-
-import type { Request, Response } from 'express';
 import Sequelize from 'sequelize';
 
 import logger from '../../../core/logger';
@@ -40,7 +33,7 @@ async function validate(email, name, password, captcha, captchaid, t, gettext) {
   return errors;
 }
 
-export default async (req: Request, res: Response) => {
+export default async (req, res) => {
   const {
     email, name, password, captcha, captchaid,
   } = req.body;

src/routes/api/auth/resend_verify.js

@@ -1,15 +1,11 @@
 /*
  * request resend of verification mail
- * @flow
  */
 
-
-import type { Request, Response } from 'express';
-
 import mailProvider from '../../../core/mail';
 import { getHostFromRequest } from '../../../utils/ip';
 
-export default async (req: Request, res: Response) => {
+export default async (req, res) => {
   const { user, lang } = req;
   if (!user || !user.regUser) {
     res.status(401);

src/routes/api/auth/restore_password.js

@@ -1,11 +1,8 @@
 /*
  * request passowrd reset mail
- * @flow
  */
 
 
-import type { Request, Response } from 'express';
-
 import mailProvider from '../../../core/mail';
 import { validateEMail } from '../../../utils/validation';
 import { getHostFromRequest } from '../../../utils/ip';
@@ -18,7 +15,7 @@ async function validate(email, gettext) {
   return errors;
 }
 
-export default async (req: Request, res: Response) => {
+export default async (req, res) => {
   const ip = req.trueIp;
   const { email } = req.body;
   const { gettext } = req.ttag;

src/routes/api/block.js

@@ -2,16 +2,13 @@
  *
  * blocks and unblocks a user
  *
- * @flow
  */
 
-import type { Request, Response } from 'express';
-
 import logger from '../../core/logger';
 import socketEvents from '../../socket/SocketEvents';
 import { RegUser, UserBlock, Channel } from '../../data/sql';
 
-async function block(req: Request, res: Response) {
+async function block(req, res) {
   let userId = parseInt(req.body.userId, 10);
   let { userName } = req.body;
   const { block: blocking } = req.body;

src/routes/api/blockdm.js

@@ -2,15 +2,11 @@
  *
  * block all private messages
  *
- * @flow
  */
-
-import type { Request, Response } from 'express';
-
 import logger from '../../core/logger';
 import socketEvents from '../../socket/SocketEvents';
 
-async function blockdm(req: Request, res: Response) {
+async function blockdm(req, res) {
   const { block } = req.body;
   const { user } = req;
 

src/routes/api/chathistory.js

@@ -2,14 +2,10 @@
  *
  * returns chat messages of given channel
  *
- * @flow
  */
-
-import type { Request, Response } from 'express';
-
 import chatProvider from '../../core/ChatProvider';
 
-async function chatHistory(req: Request, res: Response) {
+async function chatHistory(req, res) {
   let { cid, limit } = req.query;
   res.set({
     'Cache-Control': 'no-cache, no-store, must-revalidate',

src/routes/api/startdm.js

@@ -2,17 +2,13 @@
  *
  * starts a DM session
  *
- * @flow
  */
-
-import type { Request, Response } from 'express';
-
 import logger from '../../core/logger';
 import { ChatProvider } from '../../core/ChatProvider';
 import { Channel, RegUser } from '../../data/sql';
 import { isUserBlockedBy } from '../../data/sql/UserBlock';
 
-async function startDm(req: Request, res: Response) {
+async function startDm(req, res) {
   let userId = parseInt(req.body.userId, 10);
   let { userName } = req.body;
   const { user } = req;

src/routes/history.js

@@ -1,14 +1,8 @@
-/**
- *
- * @flow
- */
-
 import fs from 'fs';
-import type { Request, Response } from 'express';
 
 import { BACKUP_DIR } from '../core/config';
 
-async function history(req: Request, res: Response) {
+async function history(req, res) {
   const { day, id } = req.query;
   if (!BACKUP_DIR || !day || !id
       || day.includes('/') || day.includes('\\') || day.length !== 8

src/routes/reset_password.js

@@ -1,13 +1,10 @@
 /**
  * basic admin api
  *
- * @flow
  */
 
 import express from 'express';
 
-import type { Request, Response } from 'express';
-
 import logger from '../core/logger';
 import getPasswordResetHtml from '../ssr/PasswordReset';
 
@@ -27,7 +24,7 @@ router.use(express.urlencoded({ extended: true }));
  * Check for POST parameters,
  * if invalid password is given, ignore it and go to next
  */
-router.post('/', async (req: Request, res: Response) => {
+router.post('/', async (req, res) => {
   const { pass, passconf, code } = req.body;
   const { lang } = req;
   const { t } = req.ttag;
@@ -96,7 +93,7 @@ router.post('/', async (req: Request, res: Response) => {
 /*
  * Check GET parameters for action to execute
  */
-router.get('/', async (req: Request, res: Response) => {
+router.get('/', async (req, res) => {
   const { token } = req.query;
   const { lang } = req;
   const { t } = req.ttag;

src/socket/APISocketServer.js

@@ -5,8 +5,7 @@
  * The minecraft server can set pixels and report user logins
  * and more.
  *
- * @flow */
-
+ */
 
 import WebSocket from 'ws';
 
@@ -36,7 +35,7 @@ async function verifyClient(info, done) {
 
 
 class APISocketServer {
-  wss: WebSocket.Server;
+  wss; // WebSocket.Server
 
   initialize() {
     logger.info('Starting API websocket server');

src/socket/SocketServer.js

@@ -320,7 +320,7 @@ class SocketServer {
     return amount;
   }
 
-  broadcastPixelBuffer(canvasId: number, chunkid, data: Buffer) {
+  broadcastPixelBuffer(canvasId, chunkid, data) {
     if (this.CHUNK_CLIENTS.has(chunkid)) {
       const clients = this.CHUNK_CLIENTS.get(chunkid)
         // eslint-disable-next-line eqeqeq

src/store/actions/README.md

@@ -1,12 +1,10 @@
-/* @flow */
-
-import type { ColorIndex } from '../core/Palette';
-import type { State } from '../reducers';
+# Actions
 
+List of redux actions for reference:
 
+```js
 export type Action =
     { type: 'LOGGED_OUT' }
-  // my actions
   | { type: 'ALERT',
     title: string,
     text: string,
@@ -149,5 +147,5 @@ export type Action =
   | { type: 'RELOAD_URL' }
   | { type: 'SET_HISTORICAL_TIME', date: string, time: string }
   | { type: 'ON_VIEW_FINISH_CHANGE' };
-export type PromiseAction = Promise<Action>;
-export type GetState = () => State;
+
+```

src/store/actions/index.js

@@ -115,7 +115,7 @@ export function toggleOpenMenu() {
   };
 }
 
-export function setRequestingPixel(requestingPixel: boolean) {
+export function setRequestingPixel(requestingPixel) {
   return {
     type: 'SET_REQUESTING_PIXEL',
     requestingPixel,
@@ -148,14 +148,14 @@ export function unsetHover() {
   };
 }
 
-export function setWait(wait: ?number) {
+export function setWait(wait) {
   return {
     type: 'SET_WAIT',
     wait,
   };
 }
 
-export function setMobile(mobile: boolean) {
+export function setMobile(mobile) {
   return {
     type: 'SET_MOBILE',
     mobile,
@@ -214,8 +214,8 @@ export function receiveChatMessage(
   country,
   channel,
   user,
-  isPing: boolean,
-  isRead: boolean,
+  isPing,
+  isRead,
 ) {
   return {
     type: 'RECEIVE_CHAT_MESSAGE',
@@ -334,7 +334,7 @@ export function preLoadedBigChunk(
 
 export function receiveBigChunk(
   center,
-  chunk: Uint8Array,
+  chunk,
 ) {
   return {
     type: 'RECEIVE_BIG_CHUNK',
@@ -343,7 +343,7 @@ export function receiveBigChunk(
   };
 }
 
-export function receiveBigChunkFailure(center, error: Error) {
+export function receiveBigChunkFailure(center, error) {
   return {
     type: 'RECEIVE_BIG_CHUNK_FAILURE',
     center,
@@ -429,7 +429,7 @@ export function setName(
 }
 
 export function setMailreg(
-  mailreg: boolean,
+  mailreg,
 ) {
   return {
     type: 'SET_MAILREG',
@@ -475,14 +475,14 @@ function receiveChatHistory(
   };
 }
 
-function setChatFetching(fetching: boolean) {
+function setChatFetching(fetching) {
   return {
     type: 'SET_CHAT_FETCHING',
     fetching,
   };
 }
 
-function setApiFetching(fetching: boolean) {
+function setApiFetching(fetching) {
   return {
     type: 'SET_API_FETCHING',
     fetching,
@@ -559,8 +559,8 @@ export function initTimer() {
 export function openWindow(
   windowType,
   title,
-  fullscreen: boolean,
-  cloneable: boolean,
+  fullscreen,
+  cloneable,
   args,
   xPos = null,
   yPos = null,
@@ -708,7 +708,7 @@ export function unblockUser(userId, userName) {
   };
 }
 
-export function blockingDm(blockDm: boolean) {
+export function blockingDm(blockDm) {
   return {
     type: 'SET_BLOCKING_DM',
     blockDm,
@@ -838,7 +838,7 @@ export function closeAllWindowTypes(windowType) {
 
 export function hideAllWindowTypes(
   windowType,
-  hide: boolean,
+  hide,
 ) {
   return {
     type: 'HIDE_ALL_WINDOW_TYPE',
@@ -896,7 +896,7 @@ export function gotCoolDownDelta(delta) {
 export function setUserBlock(
   userId,
   userName,
-  block: boolean,
+  block,
 ) {
   return async (dispatch) => {
     dispatch(setApiFetching(true));
@@ -918,7 +918,7 @@ export function setUserBlock(
 }
 
 export function setBlockingDm(
-  block: boolean,
+  block,
 ) {
   return async (dispatch) => {
     dispatch(setApiFetching(true));

src/store/middleware/notifications.js

@@ -1,7 +1,6 @@
 /**
  * Notifications
  *
- * @flow
  */
 
 

src/store/reducers/audio.js

@@ -1,5 +1,3 @@
-/* @flow */
-
 const initialState = {
   mute: false,
   chatNotify: true,

src/store/reducers/canvas.js

@@ -15,6 +15,7 @@ import {
   TILE_SIZE,
 } from '../../core/constants';
 
+/*
 export type CanvasState = {
   canvasId: number,
   canvasIdent: string,
@@ -40,13 +41,14 @@ export type CanvasState = {
   prevCanvasCoords: Object,
   showHiddenCanvases: boolean,
 };
+*/
 
 /*
  * parse url hash and sets view to coordinates
  * @param canvases Object with all canvas informations
  * @return view, viewscale and scale for state
  */
-function getViewFromURL(canvases: Object) {
+function getViewFromURL(canvases) {
   const { hash } = window.location;
   try {
     const almost = hash.substring(1)
@@ -143,7 +145,7 @@ const initialState = {
 export default function canvasReducer(
   state = initialState,
   action,
-): CanvasState {
+) {
   switch (action.type) {
     case 'SET_SCALE': {
       let {

src/ui/ChunkLoader3D.js

@@ -1,7 +1,6 @@
 /*
  * Loading 3D chunks
  *
- * @flow
  */
 
 import {
@@ -19,9 +18,9 @@ import Chunk from './ChunkRGB3D';
 
 class ChunkLoader {
   store = null;
-  canvasId: number;
+  canvasId;
   palette;
-  chunks: Map<string, Chunk>;
+  chunks; // Map<string, Chunk>
 
   constructor(store, canvasId, palette, canvasSize) {
     this.store = store;
@@ -38,7 +37,7 @@ class ChunkLoader {
     this.chunks = new Map();
   }
 
-  getVoxel(x: number, y: number, z: number) {
+  getVoxel(x, y, z) {
     const { canvasSize } = this;
     const [xc, zc] = getChunkOfPixel(canvasSize, x, y, z);
     const offset = getOffsetOfPixel(canvasSize, x, y, z);
@@ -56,10 +55,10 @@ class ChunkLoader {
   }
 
   getVoxelUpdate(
-    xc: number,
-    zc: number,
-    offset: number,
-    color: number,
+    xc,
+    zc,
+    offset,
+    color,
   ) {
     const key = `${xc}:${zc}`;
     const chunk = this.chunks.get(key);
@@ -68,7 +67,7 @@ class ChunkLoader {
     }
   }
 
-  getChunk(xc, zc, fetch: boolean) {
+  getChunk(xc, zc, fetch) {
     const chunkKey = `${xc}:${zc}`;
     // console.log(`Get chunk ${chunkKey}`);
     let chunk = this.chunks.get(chunkKey);
@@ -88,7 +87,7 @@ class ChunkLoader {
     return null;
   }
 
-  async fetchChunk(cx: number, cz: number, chunk) {
+  async fetchChunk(cx, cz, chunk) {
     const center = [0, cx, cz];
     this.store.dispatch(requestBigChunk(center));
     try {
@@ -114,7 +113,7 @@ class ChunkLoader {
 
   /*
   // sine environment creation for load tests
-  async fetchChunk(xc: number, zc: number, chunk) {
+  async fetchChunk(xc, zc, chunk) {
     const { key } = chunk;
     console.log(`Fetch chunk ${key}`);
     await chunk.generateSin();

src/ui/ChunkRGB3D.js

@@ -1,7 +1,6 @@
 /*
  * 3D Chunk
  *
- * @flow
  */
 
 /* We have to look for performance here not for good looking code */
@@ -75,16 +74,16 @@ const material = new THREE.MeshLambertMaterial({
 
 
 class Chunk {
-  cell: Array;
-  key: string;
-  ready: boolean = false;
-  palette: Object;
-  buffer: Uint8Array;
-  mesh: THREE.Mesh = null;
-  faceCnt: number;
-  lastPixel: number;
-  heightMap: Array;
-  timestamp: number;
+  cell; // Array
+  key; // string
+  ready = false;
+  palette; // Object
+  buffer; // Uint8Array
+  mesh = null; // THREE.Mesh
+  faceCnt; // number
+  lastPixel; //  number
+  heightMap; // Array
+  timestamp; // number
 
   constructor(palette, key, xc, zc) {
     this.cell = [0, xc, zc];
@@ -99,7 +98,7 @@ class Chunk {
     }
   }
 
-  getVoxel(x: number, y: number, z: number) {
+  getVoxel(x, y, z) {
     const { buffer } = this;
     if (!buffer) return 0;
     if (x < 0 || x >= THREE_TILE_SIZE || y >= THREE_CANVAS_HEIGHT
@@ -111,7 +110,7 @@ class Chunk {
     return this.buffer[offset];
   }
 
-  getVoxelByOffset(offset: number) {
+  getVoxelByOffset(offset) {
     const { buffer } = this;
     if (!buffer) return 0;
     return buffer[offset];
@@ -149,7 +148,7 @@ class Chunk {
   }
   */
 
-  static calculateMetaData(buffer: Uint8Array) {
+  static calculateMetaData(buffer) {
     const rowVolume = THREE_TILE_SIZE ** 2;
     const heightMap = new Uint8Array(rowVolume);
 
@@ -204,7 +203,7 @@ class Chunk {
     return [faceCnt, lastPixel, heightMap];
   }
 
-  static getOffsetOfVoxel(x: number, y: number, z: number) {
+  static getOffsetOfVoxel(x, y, z) {
     return x + z * THREE_TILE_SIZE + y * THREE_TILE_SIZE * THREE_TILE_SIZE;
   }
 
@@ -216,7 +215,7 @@ class Chunk {
     return [x, y, z];
   }
 
-  setVoxelByOffset(offset: number, clr: number) {
+  setVoxelByOffset(offset, clr) {
     if (offset > this.lastPixel) {
       this.lastPixel = offset;
     }
@@ -233,12 +232,12 @@ class Chunk {
     this.renderChunk();
   }
 
-  setVoxel(x: number, y: number, z: number, clr: number) {
+  setVoxel(x, y, z, clr) {
     const offset = Chunk.getOffsetOfVoxel(x, y, z);
     this.setVoxelByOffset(offset, clr);
   }
 
-  async fromBuffer(chunkBufferInpt: Uint8Array) {
+  async fromBuffer(chunkBufferInpt) {
     let chunkBuffer = chunkBufferInpt;
     const neededLength = THREE_TILE_SIZE ** 2 * THREE_CANVAS_HEIGHT;
     if (chunkBuffer.byteLength < neededLength) {

src/ui/PixelNotify.js

@@ -3,21 +3,18 @@
  * Notification when someone places a pixel nearby
  * Red increasing circle.
  *
- * @flow
  */
 
-import type { State } from '../reducers';
-
 import { clamp, worldToScreen } from '../core/utils';
 
 
 class PixelNotify {
   static NOTIFICATION_TIME = 1100;
 
-  scale: number;
-  notifcircle: HTMLCanvasElement;
-  notificationRadius: number;
-  pixelList: Array;
+  scale; // number
+  notifcircle; // HTMLCanvasElement
+  notificationRadius; // number
+  pixelList; // Array
 
   constructor() {
     // initialise notification circle image
@@ -39,7 +36,7 @@ class PixelNotify {
   }
 
 
-  addPixel(x: number, y: number) {
+  addPixel(x, y) {
     if (this.pixelList.length < 300) {
       this.pixelList.unshift([Date.now(), x, y]);
     }
@@ -51,15 +48,15 @@ class PixelNotify {
   }
 
 
-  updateScale(scale: number) {
+  updateScale(scale) {
     this.scale = scale;
     this.notificationRadius = clamp(this.scale * 10, 20, 400);
   }
 
 
   render(
-    state: State,
-    $viewport: HTMLCanvasElement,
+    state,
+    $viewport,
   ) {
     const viewportCtx = $viewport.getContext('2d');
     if (!viewportCtx) return;

src/ui/loadImage.js

@@ -1,5 +1,3 @@
-/* @flow */
-
 /*
  * check if cross-origin request
  * see:
@@ -33,21 +31,21 @@ export function loadImage(url) {
  * loading tiles that get temporarily shown till real tile is loaded
  */
 class LoadingTiles {
-  tiles: Object;
+  tiles; // Object
 
   constructor() {
     this.tiles = {};
     this.loadLoadingTile(0);
   }
 
-  getTile(canvasId: number) {
+  getTile(canvasId) {
     if (typeof this.tiles[canvasId] === 'undefined') {
       this.loadLoadingTile(canvasId);
     }
     return this.tiles[canvasId] || this.tiles[0] || null;
   }
 
-  async loadLoadingTile(canvasId: number) {
+  async loadLoadingTile(canvasId) {
     if (this.tiles[canvasId] === null) {
       return;
     }

src/ui/placePixel.js

@@ -3,7 +3,6 @@
  * Always just one pixelrequest, queue additional requests to send later
  * Pixels get predicted on the client and reset if server refused
  *
- * @flow
  * */
 import { t } from 'ttag';
 import {

src/ui/render2Delements.js

@@ -1,19 +1,17 @@
 /*
  * placeholder that shows underneach cursor
  *
- * @flow
  */
 
-import type { State } from '../reducers';
 import { screenToWorld, worldToScreen } from '../core/utils';
 
 const PLACEHOLDER_SIZE = 1.2;
 const PLACEHOLDER_BORDER = 1;
 
 export function renderPlaceholder(
-  state: State,
-  $viewport: HTMLCanvasElement,
-  scale: number,
+  state,
+  $viewport,
+  scale,
 ) {
   const viewportCtx = $viewport.getContext('2d');
 
@@ -45,9 +43,9 @@ export function renderPlaceholder(
 
 
 export function renderPotatoPlaceholder(
-  state: State,
-  $viewport: HTMLCanvasElement,
-  scale: number,
+  state,
+  $viewport,
+  scale,
 ) {
   const viewportCtx = $viewport.getContext('2d');
 
@@ -72,10 +70,10 @@ export function renderPotatoPlaceholder(
 
 
 export function renderGrid(
-  state: State,
-  $viewport: HTMLCanvasElement,
-  scale: number,
-  isLightGrid: boolean,
+  state,
+  $viewport,
+  scale,
+  isLightGrid,
 ) {
   const { width, height } = $viewport;