show non affordable

Assets/Scripts/Manager/MoneyManager.cs

@@ -28,6 +28,16 @@ public class MoneyManager : MonoBehaviour
         }
     }
 
+    private void Update()
+    {
+        // TODO: move to observer patter idgaf rn
+        for (int i = 0; i < MoneyTexts.Length; i++)
+        {
+            float price = towerCollection.Towers[i].price;
+            MoneyTexts[i].color = GameManager.Instance.Balance.Value >= price ? Color.green : Color.red;
+        }
+    }
+
     private void Start()
     {
         // Show prices