diff --git a/src/App.js b/src/App.js
index 18a49bae60f994821a6f78f8bb489a0a0ecf7ebb..28afd732d085e3d641fc4330225d3ee1394afc4e 100644
--- a/src/App.js
+++ b/src/App.js
@@ -1,5 +1,4 @@
-import React, {Component} from 'react';
-import logo from './logo.svg';
+import React, {Component} from 'react'
import './App.css';
import Level from './render/Level'
import LevelData from './game/Level'
diff --git a/src/App.test.js b/src/App.test.js
deleted file mode 100644
index a754b201bf9c6caf5271293588189fb4210f99d1..0000000000000000000000000000000000000000
--- a/src/App.test.js
+++ /dev/null
@@ -1,9 +0,0 @@
-import React from 'react';
-import ReactDOM from 'react-dom';
-import App from './App';
-
-it('renders without crashing', () => {
- const div = document.createElement('div');
- ReactDOM.render(<App />, div);
- ReactDOM.unmountComponentAtNode(div);
-});
diff --git a/src/index.js b/src/index.js
index 87d1be551891a8eccfe648e1b5a49b5751e5cad5..395b74997b25f165e44680dd0626436c260d1188 100644
--- a/src/index.js
+++ b/src/index.js
@@ -2,11 +2,5 @@ import React from 'react';
import ReactDOM from 'react-dom';
import './index.css';
import App from './App';
-import * as serviceWorker from './serviceWorker';
ReactDOM.render(<App />, document.getElementById('root'));
-
-// If you want your app to work offline and load faster, you can change
-// unregister() to register() below. Note this comes with some pitfalls.
-// Learn more about service workers: https://bit.ly/CRA-PWA
-serviceWorker.unregister();
diff --git a/src/logo.svg b/src/logo.svg
deleted file mode 100644
index 6b60c1042f58d9fabb75485aa3624dddcf633b5c..0000000000000000000000000000000000000000
--- a/src/logo.svg
+++ /dev/null
@@ -1,7 +0,0 @@
-<svg xmlns="http://www.w3.org/2000/svg" viewBox="0 0 841.9 595.3">
- <g fill="#61DAFB">
- <path d="M666.3 296.5c0-32.5-40.7-63.3-103.1-82.4 14.4-63.6 8-114.2-20.2-130.4-6.5-3.8-14.1-5.6-22.4-5.6v22.3c4.6 0 8.3.9 11.4 2.6 13.6 7.8 19.5 37.5 14.9 75.7-1.1 9.4-2.9 19.3-5.1 29.4-19.6-4.8-41-8.5-63.5-10.9-13.5-18.5-27.5-35.3-41.6-50 32.6-30.3 63.2-46.9 84-46.9V78c-27.5 0-63.5 19.6-99.9 53.6-36.4-33.8-72.4-53.2-99.9-53.2v22.3c20.7 0 51.4 16.5 84 46.6-14 14.7-28 31.4-41.3 49.9-22.6 2.4-44 6.1-63.6 11-2.3-10-4-19.7-5.2-29-4.7-38.2 1.1-67.9 14.6-75.8 3-1.8 6.9-2.6 11.5-2.6V78.5c-8.4 0-16 1.8-22.6 5.6-28.1 16.2-34.4 66.7-19.9 130.1-62.2 19.2-102.7 49.9-102.7 82.3 0 32.5 40.7 63.3 103.1 82.4-14.4 63.6-8 114.2 20.2 130.4 6.5 3.8 14.1 5.6 22.5 5.6 27.5 0 63.5-19.6 99.9-53.6 36.4 33.8 72.4 53.2 99.9 53.2 8.4 0 16-1.8 22.6-5.6 28.1-16.2 34.4-66.7 19.9-130.1 62-19.1 102.5-49.9 102.5-82.3zm-130.2-66.7c-3.7 12.9-8.3 26.2-13.5 39.5-4.1-8-8.4-16-13.1-24-4.6-8-9.5-15.8-14.4-23.4 14.2 2.1 27.9 4.7 41 7.9zm-45.8 106.5c-7.8 13.5-15.8 26.3-24.1 38.2-14.9 1.3-30 2-45.2 2-15.1 0-30.2-.7-45-1.9-8.3-11.9-16.4-24.6-24.2-38-7.6-13.1-14.5-26.4-20.8-39.8 6.2-13.4 13.2-26.8 20.7-39.9 7.8-13.5 15.8-26.3 24.1-38.2 14.9-1.3 30-2 45.2-2 15.1 0 30.2.7 45 1.9 8.3 11.9 16.4 24.6 24.2 38 7.6 13.1 14.5 26.4 20.8 39.8-6.3 13.4-13.2 26.8-20.7 39.9zm32.3-13c5.4 13.4 10 26.8 13.8 39.8-13.1 3.2-26.9 5.9-41.2 8 4.9-7.7 9.8-15.6 14.4-23.7 4.6-8 8.9-16.1 13-24.1zM421.2 430c-9.3-9.6-18.6-20.3-27.8-32 9 .4 18.2.7 27.5.7 9.4 0 18.7-.2 27.8-.7-9 11.7-18.3 22.4-27.5 32zm-74.4-58.9c-14.2-2.1-27.9-4.7-41-7.9 3.7-12.9 8.3-26.2 13.5-39.5 4.1 8 8.4 16 13.1 24 4.7 8 9.5 15.8 14.4 23.4zM420.7 163c9.3 9.6 18.6 20.3 27.8 32-9-.4-18.2-.7-27.5-.7-9.4 0-18.7.2-27.8.7 9-11.7 18.3-22.4 27.5-32zm-74 58.9c-4.9 7.7-9.8 15.6-14.4 23.7-4.6 8-8.9 16-13 24-5.4-13.4-10-26.8-13.8-39.8 13.1-3.1 26.9-5.8 41.2-7.9zm-90.5 125.2c-35.4-15.1-58.3-34.9-58.3-50.6 0-15.7 22.9-35.6 58.3-50.6 8.6-3.7 18-7 27.7-10.1 5.7 19.6 13.2 40 22.5 60.9-9.2 20.8-16.6 41.1-22.2 60.6-9.9-3.1-19.3-6.5-28-10.2zM310 490c-13.6-7.8-19.5-37.5-14.9-75.7 1.1-9.4 2.9-19.3 5.1-29.4 19.6 4.8 41 8.5 63.5 10.9 13.5 18.5 27.5 35.3 41.6 50-32.6 30.3-63.2 46.9-84 46.9-4.5-.1-8.3-1-11.3-2.7zm237.2-76.2c4.7 38.2-1.1 67.9-14.6 75.8-3 1.8-6.9 2.6-11.5 2.6-20.7 0-51.4-16.5-84-46.6 14-14.7 28-31.4 41.3-49.9 22.6-2.4 44-6.1 63.6-11 2.3 10.1 4.1 19.8 5.2 29.1zm38.5-66.7c-8.6 3.7-18 7-27.7 10.1-5.7-19.6-13.2-40-22.5-60.9 9.2-20.8 16.6-41.1 22.2-60.6 9.9 3.1 19.3 6.5 28.1 10.2 35.4 15.1 58.3 34.9 58.3 50.6-.1 15.7-23 35.6-58.4 50.6zM320.8 78.4z"/>
- <circle cx="420.9" cy="296.5" r="45.7"/>
- <path d="M520.5 78.1z"/>
- </g>
-</svg>
diff --git a/src/serviceWorker.js b/src/serviceWorker.js
deleted file mode 100644
index f8c7e50c201765c456ddbf21e9ea5b3e6a936920..0000000000000000000000000000000000000000
--- a/src/serviceWorker.js
+++ /dev/null
@@ -1,135 +0,0 @@
-// This optional code is used to register a service worker.
-// register() is not called by default.
-
-// This lets the app load faster on subsequent visits in production, and gives
-// it offline capabilities. However, it also means that developers (and users)
-// will only see deployed updates on subsequent visits to a page, after all the
-// existing tabs open on the page have been closed, since previously cached
-// resources are updated in the background.
-
-// To learn more about the benefits of this model and instructions on how to
-// opt-in, read https://bit.ly/CRA-PWA
-
-const isLocalhost = Boolean(
- window.location.hostname === 'localhost' ||
- // [::1] is the IPv6 localhost address.
- window.location.hostname === '[::1]' ||
- // 127.0.0.1/8 is considered localhost for IPv4.
- window.location.hostname.match(
- /^127(?:\.(?:25[0-5]|2[0-4][0-9]|[01]?[0-9][0-9]?)){3}$/
- )
-);
-
-export function register(config) {
- if (process.env.NODE_ENV === 'production' && 'serviceWorker' in navigator) {
- // The URL constructor is available in all browsers that support SW.
- const publicUrl = new URL(process.env.PUBLIC_URL, window.location.href);
- if (publicUrl.origin !== window.location.origin) {
- // Our service worker won't work if PUBLIC_URL is on a different origin
- // from what our page is served on. This might happen if a CDN is used to
- // serve assets; see https://github.com/facebook/create-react-app/issues/2374
- return;
- }
-
- window.addEventListener('load', () => {
- const swUrl = `${process.env.PUBLIC_URL}/service-worker.js`;
-
- if (isLocalhost) {
- // This is running on localhost. Let's check if a service worker still exists or not.
- checkValidServiceWorker(swUrl, config);
-
- // Add some additional logging to localhost, pointing developers to the
- // service worker/PWA documentation.
- navigator.serviceWorker.ready.then(() => {
- console.log(
- 'This web app is being served cache-first by a service ' +
- 'worker. To learn more, visit https://bit.ly/CRA-PWA'
- );
- });
- } else {
- // Is not localhost. Just register service worker
- registerValidSW(swUrl, config);
- }
- });
- }
-}
-
-function registerValidSW(swUrl, config) {
- navigator.serviceWorker
- .register(swUrl)
- .then(registration => {
- registration.onupdatefound = () => {
- const installingWorker = registration.installing;
- if (installingWorker == null) {
- return;
- }
- installingWorker.onstatechange = () => {
- if (installingWorker.state === 'installed') {
- if (navigator.serviceWorker.controller) {
- // At this point, the updated precached content has been fetched,
- // but the previous service worker will still serve the older
- // content until all client tabs are closed.
- console.log(
- 'New content is available and will be used when all ' +
- 'tabs for this page are closed. See https://bit.ly/CRA-PWA.'
- );
-
- // Execute callback
- if (config && config.onUpdate) {
- config.onUpdate(registration);
- }
- } else {
- // At this point, everything has been precached.
- // It's the perfect time to display a
- // "Content is cached for offline use." message.
- console.log('Content is cached for offline use.');
-
- // Execute callback
- if (config && config.onSuccess) {
- config.onSuccess(registration);
- }
- }
- }
- };
- };
- })
- .catch(error => {
- console.error('Error during service worker registration:', error);
- });
-}
-
-function checkValidServiceWorker(swUrl, config) {
- // Check if the service worker can be found. If it can't reload the page.
- fetch(swUrl)
- .then(response => {
- // Ensure service worker exists, and that we really are getting a JS file.
- const contentType = response.headers.get('content-type');
- if (
- response.status === 404 ||
- (contentType != null && contentType.indexOf('javascript') === -1)
- ) {
- // No service worker found. Probably a different app. Reload the page.
- navigator.serviceWorker.ready.then(registration => {
- registration.unregister().then(() => {
- window.location.reload();
- });
- });
- } else {
- // Service worker found. Proceed as normal.
- registerValidSW(swUrl, config);
- }
- })
- .catch(() => {
- console.log(
- 'No internet connection found. App is running in offline mode.'
- );
- });
-}
-
-export function unregister() {
- if ('serviceWorker' in navigator) {
- navigator.serviceWorker.ready.then(registration => {
- registration.unregister();
- });
- }
-}