save progress

docs/js/upgrade.js

@@ -4,13 +4,19 @@ function addCube() {
     ])
 }
 
-let upgrades = [
-    {
-        'name': 'Set',
-        'price': 10,
-        'exec': addCube
-    }
-]
+let upgrades = window.localStorage.getItem('upgrades')
+
+if (!upgrades) {
+    upgrades = [
+        {
+            'name': 'Set',
+            'price': 10,
+            'exec': addCube
+        }
+    ]
+} else {
+    upgrades = JSON.parse(upgrades);
+}
 
 let hud2 = document.querySelector('.hud');
 
@@ -27,4 +33,10 @@ for (let upgrade of upgrades) {
         button.textContent = `Buy ${upgrade.name} for ${upgrade.price} nil`
         upgrade.exec();
     })
+}
+
+let cubesI = window.localStorage.getItem('cubes') * 1;
+
+for (let i = 0; i < cubesI; i++) {
+    addCube();
 }