AddItem()

public void AddItem(Item item){
    foreach(Item invtry in itemList){
      int newAmt = 0;
      if(invtry.itemScriptableObject == item.itemScriptableObject){
        newAmt = invtry.amount += item.GetBaseAmount();
        UpdateSlot(item.GetName(), newAmt, item);
        UpdateEquipt(item, newAmt);
        return;
      };
    }

    itemList.Add(item);
    AddSlot(item);
  }