[Player][Interaction][Assets] Add placeholder assets for some more sprites. Move all to External/Placeholder. Add list of assets with attributions. Pulver combines items now

Assets/Scripts/FollowerController.cs

@@ -39,6 +39,10 @@ public class FollowerController : MonoBehaviour
     public event FollowerPickupHandler OnPickupReturned;
     private Coroutine pickupCoroutine;
 
+    private bool lastInteractionSuccess = true;
+
+    public bool justCombined = false;
+
     void Awake()
     {
         aiPath = GetComponent<AIPath>();
@@ -242,6 +246,11 @@ public class FollowerController : MonoBehaviour
         }
     }
 
+    public void SetInteractionResult(bool success)
+    {
+        lastInteractionSuccess = success;
+    }
+
     private System.Collections.IEnumerator PickupSequence(Vector2 itemPosition, Transform playerTransform)
     {
         isManualFollowing = false;
@@ -258,8 +267,8 @@ public class FollowerController : MonoBehaviour
             yield return null;
         }
         OnPickupArrived?.Invoke();
-        // Swap held item if necessary, then set held item and destroy pickup
-        if (heldObjectRenderer != null)
+        // Only perform pickup/swap logic if interaction succeeded
+        if (lastInteractionSuccess && heldObjectRenderer != null)
         {
             Collider2D[] hits = Physics2D.OverlapCircleAll(itemPosition, 0.2f);
             foreach (var hit in hits)
@@ -267,6 +276,13 @@ public class FollowerController : MonoBehaviour
                 var pickup = hit.GetComponent<Pickup>();
                 if (pickup != null)
                 {
+                    if (justCombined)
+                    {
+                        // Combination: just destroy the pickup, don't spawn anything
+                        GameObject.Destroy(pickup.gameObject);
+                        justCombined = false;
+                        break;
+                    }
                     // Swap logic: if holding an item, drop it here
                     if (currentlyHeldItem != null)
                     {