worked on inventory hover

Assets/Scripts/Inventory.cs

@@ -43,8 +43,7 @@ public class Inventory : MonoBehaviour {
         } else {
             items[item] += amount;
         }
-        
-        
+
         onItemChangedCallback?.Invoke();
     }
 

Assets/Scripts/InventorySlot.cs

@@ -1,11 +1,16 @@
+using System;
 using UnityEngine;
+using UnityEngine.PlayerLoop;
 using UnityEngine.UI;
 
 public class InventorySlot : MonoBehaviour {
     public Image icon;
-    
     private Item _item;
 
+    private void Start() {
+        Physics.queriesHitTriggers = true;
+    }
+
     public void AddItem(Item newItem) {
         _item = newItem;
 
@@ -32,4 +37,14 @@ public class InventorySlot : MonoBehaviour {
         }
 
     }
+
+    public void OnMouseOver() {
+        icon.sprite = _item.selectedSprite;
+        Debug.Log("Mouse Over Slot");
+    }
+//TODO: OnMouse Methods not working :'(
+    public void OnMouseExit() {
+        icon.sprite = _item.defaultSprite;
+        Debug.Log("Mouse Exit Slot");
+    }
 }

Assets/Scripts/InventoryUI.cs

@@ -2,33 +2,31 @@ using System.Linq;
 using UnityEngine;
 
 public class InventoryUI : MonoBehaviour {
-
     public Transform itemsParent;
     public GameObject inventoryUI;
     private Inventory _inventory;
     private InventorySlot[] _slots;
-    
+
     // Start is called before the first frame update
     void Start() {
         _inventory = Inventory.instance;
         _inventory.onItemChangedCallback += UpdateUI;
 
         _slots = itemsParent.GetComponentsInChildren<InventorySlot>();
-        toggleInventory();
+        ToggleInventory();
     }
 
     // Update is called once per frame
     void Update() {
         if(Input.GetButtonDown("Inventory")) {
-            toggleInventory();
+            ToggleInventory();
         }
     }
 
-    private void toggleInventory() {
-        
+    private void ToggleInventory() {
         inventoryUI.SetActive(!inventoryUI.activeSelf);
     }
-    
+
     private void UpdateUI() {
         for(int i = 0; i < _slots.Length; i++) {
             if(i < _inventory.items.Count) {
@@ -38,4 +36,4 @@ public class InventoryUI : MonoBehaviour {
             }
         }
     }
-}
+}