Animals can now be bought in AnimalShop

if bought they will be placed somewhere random on the map

Assets/Scripts/Shop/ItemShopSlot.cs

@@ -0,0 +1,51 @@
+using TMPro;
+
+namespace Shop {
+    public class ItemShopSlot : ElementStorageSlot<Item> {
+        public TextMeshProUGUI nameText;
+        public TextMeshProUGUI costText;
+
+        private ItemShop _itemShop;
+        private Inventory _inventory;
+        private PlayerController _playerController;
+
+        private void Start() {
+            _itemShop = ItemShop.instance;
+            _inventory = Inventory.instance;
+            _playerController = PlayerController.instance;
+        }
+
+        /**
+     * Clears the Shop Slot
+     */
+        public override void ClearSlot() {
+            nameText.text = "";
+            costText.text = "";
+            amountText.text = "";
+            base.ClearSlot();
+        }
+
+        /**
+     * Gets called when the Shop Slot is clicked
+     */
+        public override void UseElement() {
+            if(Element) {
+                if(_playerController.Money >= Element.price) {
+                    if(Element) {
+                        _playerController.ChangeMoney(-Element.price);
+                        _itemShop.itemWasBought = true;
+                        // Debug.Log("Buying Item: " + Element.displayName);
+                    }
+
+                    _inventory.AddElement(Element, 1);
+                    _itemShop.RemoveElement(Element, 1);
+                } else {
+                    // Debug.Log("Not enough money to buy Item.");
+                }
+
+                _itemShop.onElementChangedCallback?.Invoke();
+                _inventory.onElementChangedCallback?.Invoke();
+            }
+        }
+    }
+}