Improved look of main scene

Assets/Scripts/UI/BuildingMenu.cs

@@ -1,4 +1,5 @@
-using Fruitomation.Global;
+using System;
+using Fruitomation.Global;
 using Fruitomation.Game;
 using UnityEngine.UI;
 using UnityEngine;
@@ -13,16 +14,19 @@ namespace Fruitomation.UI
         [SerializeField] private GameObject MenuGrid;
         [SerializeField] private GameObject MenuItemPrefab;
         [SerializeField] private BuildingRegistry BuildingPrefabs;
-
-        private void Update()
-        {
+        
+        private void Update() =>
             Menu.SetActive(GameStateController.Is(GameState.BuildingMenu));
-        }
 
         private void Start()
         {
             foreach (BuildingRegistry.BuildingInfo info in BuildingPrefabs.GetBuildings())
             {
+                if (!UpgradeManager.Is(info.Requirement))
+                {
+                    continue;
+                }
+
                 GameObject go = Instantiate(MenuItemPrefab, MenuGrid.transform);
                 Text text = go.GetComponentInChildren<Text>();