New difficulty and random generation system + new levels

manifest.json

@@ -1,6 +1,6 @@
 {
     "name": "Parrot's Feast",
-    "short_name": "ParrotFeast",
+    "short_name": "ParrotsFeast",
     "description": "A fun and interactive game where you guide a parrot to feast on seeds!",
     "start_url": "./index.html",
     "display": "standalone",

service-worker.js

@@ -1,12 +1,60 @@
 const CACHE_NAME = 'parrots-feast-cache-v1';
 const urlsToCache = [
-  '/',
-  '/index.html',
-  '/styles.css',
-  '/script.js',
-  '/icon-192x192.png',,
-  // Puoi aggiungere qui altre risorse essenziali da mettere in cache all'installazione
-];
+    '/',
+    '/index.html',
+    '/styles.css',
+    '/script.js',
+    '/icon-192x192.png',
+    '/apple-touch-icon.png',
+    '/arrow-down.svg',
+    '/arrow-left.svg',
+    '/arrow-right.svg',
+    '/arrow-up.svg',
+    '/background-level1.png',
+    '/background-level2.png',
+    '/background-level3.png',
+    '/background-level4.png',
+    '/background-level5.png',
+    '/background-music-endgame.mp3',
+    '/background-music1.mp3',
+    '/background-music2.mp3',
+    '/background-music3.mp3',
+    '/background-music4.mp3',
+    '/background-music5.mp3',
+    '/biscuit1.png',
+    '/biscuit2.png',
+    '/biscuit3.png',
+    '/bolt.svg',
+    '/boxing_bell.wav',
+    '/button_last.png',
+    '/button_top.png',
+    '/clock_tick.wav',
+    '/compress.svg',
+    '/eat_biscuit.wav',
+    '/eat_fruit.mp3',
+    '/eat_seed.wav',
+    '/end_game_background.png',
+    '/end_last_level_background.png',
+    '/end_level_background.png',
+    '/expand.svg',
+    '/favicon-16x16.png',
+    '/favicon-32x32.png',
+    '/favicon.ico',
+    '/fruit1.png',
+    '/fruit2.png',
+    '/fruit3.png',
+    '/gong.wav',
+    '/icon.png',
+    '/parrot.png',
+    '/rocket-disabled.svg',
+    '/rocket.svg',
+    '/scores_background.png',
+    '/seed1.png',
+    '/seed2.png',
+    '/seed3.png',
+    '/start_background.png',
+    '/weight-hanging.svg'
+  ];
 
 self.addEventListener('install', (event) => {
   event.waitUntil(