added: item pickups with online persistency

Assets/Scripts/Player/InteractionHandler.cs

@@ -0,0 +1,49 @@
+using Reset.Items;
+using UnityEngine;
+using UnityEngine.InputSystem;
+
+namespace Reset.Units{
+    public class InteractionHandler : MonoBehaviour{
+        private PlayerEnvironmentManager envManager;
+        private Inventory inventory;
+        private EnvironmentObserver observer;
+        
+        void Awake(){
+            envManager = GetComponent<PlayerEnvironmentManager>();
+            inventory = GetComponent<Inventory>();
+            
+            observer = envManager.FindObserverFromString("itemdrop");
+
+            observer.active = true;
+        }
+
+        public void InteractWith(GameObject target){
+            IInteractable interactable = target.GetComponent<IInteractable>();
+            
+            if (interactable == null) {
+                Debug.LogError("This item cannot be interacted with, it has no Interactable interface");
+                return;
+            }
+
+            if (target.GetComponent<ItemDrop>()) {
+                inventory.AddToInventory(target.GetComponent<ItemDrop>().item);
+            }
+            
+            interactable.Interact();
+            
+            // Don't do any actions that use the same button (hard set to Jump for now)
+            Debug.Log($"Just collected the item, consuming the input  @ {Time.time}.");
+            GetComponent<PlayerControls>().SendInputBlock("Jump");
+        }
+        
+        void OnInteract(){
+            CheckForInteraction();
+        }
+
+        private void CheckForInteraction(){
+            if (observer.active && observer.Evaluate(gameObject)) {
+                InteractWith(observer.hit.transform.gameObject);
+            }
+        }
+    }
+}