shield costs 1 essence, sound played if trying with 0 essence, shield despawns in 5 sec

Assets/Project Files/Scripts/JoonasP/EssenceNodeController.cs

@@ -25,7 +25,7 @@ public class EssenceNodeController : MonoBehaviour
     private void Awake()
     {
         nodeMaterial = GetComponent<Renderer>().material;
-        //playerInfo = PlayerInfo.Instance;
+        playerInfo = PlayerInfo.Instance;
         playerInventory = GameObject.Find("Inventory").GetComponent<Inventory>();
     }
 

Assets/Project Files/Scripts/JoonasP/PlayerInfo.cs

@@ -23,22 +23,29 @@ public class PlayerInfo : MonoBehaviour
         leftHandHeld = null;
     }
 
-    public void AddHealth(int value)
+    public bool AddHealth(int value)
     {
         health += value;
         if (health <= 0)
         {
             Debug.Log("NO HEALTH REMAINING");
+            return false;
         }
+        return true;
     }
 
-    public void AddEssenceBasic(int value)
+    public bool AddEssenceBasic(int value)
     {
         if (essence_basic + value < 0)
         {
             Debug.Log("NOT ENOUGH ESSENCE");
+            return false;
+        }
+        else 
+        { 
+            essence_basic += value;
+            return true;
         }
-        else essence_basic += value;
     }
 
     public void AddLeftHand(GameObject obj)

Assets/Project Files/Scripts/JoonasP/ShieldController.cs

@@ -0,0 +1,18 @@
+using System.Collections;
+using System.Collections.Generic;
+using UnityEngine;
+
+public class ShieldController : MonoBehaviour
+{
+    // Start is called before the first frame update
+    void Start()
+    {
+        
+    }
+
+    // Update is called once per frame
+    void Update()
+    {
+        
+    }
+}

Assets/Project Files/Scripts/JoonasP/ShieldController.cs.meta

@@ -0,0 +1,11 @@
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+MonoImporter:
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