Use stats to decide whether to show powerup upgrades. Fix error if no save exists

constants.js

@@ -528,7 +528,7 @@ function createPowerupFreqUpgrades() {
         "upgrades": [
 
         ],
-        "resources": {
+        "stats": {
           "powerups": 1
         }
       }

gorge.js

@@ -43,7 +43,8 @@ const state = {
   resources: resources,
   currentProductivity: currentProductivity,
   belongings: belongings,
-  clickPowers: clickPowers
+  clickPowers: clickPowers,
+  stats: stats
 };
 
 const numberModes = {
@@ -755,6 +756,13 @@ function upgradeReachable(id) {
           }
         };
       }
+      else if (type == "stats") {
+        for (const [stat, amount] of Object.entries(reqs)) {
+          if (stats[stat] < amount) {
+            return false;
+          }
+        };
+      }
     }
   }
 
@@ -1066,6 +1074,8 @@ function doPowerup() {
 
     clearTimeout(remove);
 
+    stats.powerups += 1;
+
     setTimeout(() => {
       body.removeChild(button);
     }, 500);
@@ -1272,8 +1282,9 @@ function load() {
   try {
     let storage = window.localStorage;
 
+    
     // migrate to everything in one
-    if (storage.getItem("save-version")) {
+    if (storage.getItem("save-version") !== null) {
       const save = {};
       save.ownedUpgrades = JSON.parse(storage.getItem("ownedUpgrades"));
       save.resources = JSON.parse(storage.getItem("resources"));
@@ -1283,8 +1294,12 @@ function load() {
       storage.setItem("save", JSON.stringify(save))
     }
 
+    
     const save = JSON.parse(storage.getItem("save"));
 
+    if (save == null)
+      return;
+
     migrate(save);
 
     for (const [key, value] of Object.entries(save.ownedUpgrades)) {
@@ -1303,6 +1318,7 @@ function load() {
       stats[key] = value;
     }
   } catch (e) {
+    console.error(e);
     clickPopup("Can't load - no access to local storage.", "info", [window.innerWidth / 2, window.innerHeight / 5]);
   }