stack item pickup (in progress), throwable hand consumes items, spawnable objects tied to item definitions

Assets/Scripts/Inventory/Inventory.cs

@@ -35,18 +35,26 @@ private void Update()
         }
     }
 
-    // we'll set this up to only try to add one item to the inventory at a time for now
-    // there won't be stacked items in the wild for right now
     public bool AddItem(Item item, int quantity)
     {
+        int curQuantity = quantity;
+
         // first try to stack
         for (int i = 0; i < itemSlots.Length; i++)
         {
-            if (itemSlots[i].item == item.id && itemSlots[i].quantity < item.maxStack)
+            if (itemSlots[i].item == item.id && itemSlots[i].quantity + quantity < item.maxStack)
             {
                 itemSlots[i].quantity += 1;
                 return true;
             }
+            else if (itemSlots[i].item == item.id)
+            {
+                curQuantity = quantity - (item.maxStack - itemSlots[i].quantity);
+                itemSlots[i].quantity = item.maxStack;
+
+                if (curQuantity <= 0)
+                    return true;
+            }
         }
 
         // no stack to add to, try to find an empty slot
@@ -56,7 +64,7 @@ public bool AddItem(Item item, int quantity)
             {
                 itemSlots[i] = new ItemSlot();
 
-                itemSlots[i].quantity = 1;
+                itemSlots[i].quantity = curQuantity;
                 itemSlots[i].item = item.id;
                 return true;
             }
@@ -88,6 +96,7 @@ public bool RemoveItemQuantity(ItemIdEnum itemId, int quantity)
                         // we have exactly enough in the current slot, so nullify it and
                         // exit
                         itemSlots[i].item = ItemIdEnum.NONE;
+                        itemSlots[i].quantity = 0;
                         break;
                     }
                     else