added comments and organized project files

Assets/Scripts/Player/UseItem.cs

@@ -0,0 +1,63 @@
+using UnityEngine;
+
+public class UseItem : MonoBehaviour
+{
+    [SerializeField] private string itemTag;
+    private GameObject heldItem;
+    private bool isHoldingItem = false;
+    private float holdStartTime;
+    public float holdTime;
+
+    void Update()
+    {
+        if (isHoldingItem)
+        {
+            // Keeps hat on the player's head
+            heldItem.transform.position = transform.position + Vector3.up;
+            if (GameManager.gameMode == GameManager.GameMode.keepAway)
+            {
+                // Adds time to the player's leaderboard standing
+                holdTime += Time.deltaTime;
+                GameManager.Instance.UpdatePlayerHoldTime(gameObject, holdTime);
+            }
+        }
+    }
+
+    private void OnCollisionEnter2D(Collision2D collision) // Player automatically picks up hat when touching it
+    {
+        if (collision.gameObject.CompareTag("Hat") && !isHoldingItem)
+        {
+            PickUpItem(collision.gameObject);
+        }
+    }
+
+    private void PickUpItem(GameObject item) // Player picks up hat and starts hold counter 
+    {
+        heldItem = item;
+        isHoldingItem = true;
+        holdStartTime = Time.time;
+        item.GetComponent<Collider2D>().enabled = false;
+        item.GetComponent<Rigidbody2D>().bodyType = RigidbodyType2D.Static;
+        item.transform.rotation = Quaternion.identity;
+        if (!GameManager.playerHoldTimes.ContainsKey(gameObject))
+        {
+            GameManager.playerHoldTimes[gameObject] = 0f;
+        }
+    }
+
+    public void DropItem() // Player drops hat when hit
+    {
+        if (isHoldingItem)
+        {
+            heldItem.GetComponent<Collider2D>().enabled = true;
+            heldItem.GetComponent<Rigidbody2D>().bodyType = RigidbodyType2D.Dynamic;
+            heldItem.transform.position += Vector3.up * 3f;
+            heldItem = null;
+            isHoldingItem = false;
+            if (GameManager.playerHoldTimes.ContainsKey(gameObject))
+            {
+                GameManager.playerHoldTimes.Remove(gameObject);
+            }
+        }
+    }
+}