perf: add a grabbable layer and set all things that can be grab in one file

Assets/Code/Scripts/Player/PlayerHeadControll.cs

@@ -2,18 +2,25 @@ using UnityEngine;
 
 public class PlayerHeadController : MonoBehaviour
 {
+    [Header("Head")]
     public Transform Head;
     public Transform CameraTransform;
-
     public Transform BodyTransform;
-
-
     public float ThrowForce;
     public float PickupDistance;
     public bool isHoldingHead;
 
-    private Rigidbody m_headRigidbody;
+    [Header("Grabbable")]
+    public Transform HandTransform; // in teh future hand maybe grab items but for now its an empty object
+    public float ItemThrowForce = 10f;
+    public float ItemPickupDistance = 5f;
 
+    private bool isHoldingItem;
+    private Rigidbody m_itemRigidbody;
+    private Collider m_itemCollider;
+    private Transform m_currentItem;
+
+    private Rigidbody m_headRigidbody;
     private Vector3 m_headInitialLocalPos;
     private Quaternion m_headInitialLocalRot;
 
@@ -31,7 +38,6 @@ public class PlayerHeadController : MonoBehaviour
         Cursor.lockState = CursorLockMode.Locked;
 
         Vector3 offset = new Vector3(0f, -0.5f, 0.5f);
-
         m_headInitialLocalPos = BodyTransform.localPosition + offset;
         m_headInitialLocalRot = BodyTransform.localRotation;
         m_headRigidbody = Head.GetComponent<Rigidbody>();
@@ -42,14 +48,20 @@ public class PlayerHeadController : MonoBehaviour
     void Update()
     {
         if (input.HeadInteractionPressed)
-        {
             InteractHead();
-        }
 
-        if (input.ThrowPressed)
-        {
+        if (input.ThrowPressed && isHoldingHead)
             ThrowHead();
+
+        if (input.InteractPressed)
+        {
+            if (!isHoldingItem)
+                TryPickupItem();
+            else
+                DropItem();
         }
+        if (input.ThrowPressed && isHoldingItem)
+            ThrowItem();
     }
 
     private void InteractHead()
@@ -60,61 +72,84 @@ public class PlayerHeadController : MonoBehaviour
             DropHead();
     }
 
+    private void TryPickupHead()
+    {
+        if (isHoldingHead || isHoldingItem) 
+            return;
+        if (Vector3.Distance(transform.position, Head.position) <= PickupDistance)
+            PickupHead();
+    }
+
+    private void PickupHead()
+    {
+        isHoldingHead = true;
+
+        if (m_headRigidbody != null)
+            Destroy(m_headRigidbody);
+
+        Head.SetParent(transform);
+        Head.localPosition = m_headInitialLocalPos;
+        Head.localRotation = m_headInitialLocalRot;
+    }
     private void DropHead()
     {
-        Debug.Log("DropHead");
         animator.SetTrigger("Throw");
-
         isHoldingHead = false;
 
         Head.SetParent(null);
 
         m_headRigidbody = Head.gameObject.AddComponent<Rigidbody>();
         m_headRigidbody.mass = 1f;
-
         m_headRigidbody.constraints =
             RigidbodyConstraints.FreezeRotationX |
             RigidbodyConstraints.FreezeRotationZ |
             RigidbodyConstraints.FreezeRotationY;
     }
-
     private void ThrowHead()
     {
-        Debug.Log("ThrowHead");
-        if (!isHoldingHead)
-            return;
-
         DropHead();
-
         m_headRigidbody.AddForce(CameraTransform.forward * ThrowForce, ForceMode.Impulse);
     }
-
-    private void TryPickupHead()
+    private void TryPickupItem()
     {
-        if (isHoldingHead)
+        if (isHoldingHead || isHoldingItem)
             return;
+        int grabbableLayer = LayerMask.GetMask("Grabbable");
+        Collider[] hits = Physics.OverlapSphere(transform.position, ItemPickupDistance, grabbableLayer);
 
-        float distance = Vector3.Distance(transform.position, Head.position);
-
-        if (distance <= PickupDistance)
+        foreach (Collider hit in hits)
         {
-            PickupHead();
+            m_currentItem = hit.transform;
+            m_itemRigidbody = hit.GetComponent<Rigidbody>();
+            m_itemCollider = hit.GetComponent<Collider>();
+            PickupItem();
+            return;
         }
     }
 
-    private void PickupHead()
+    private void PickupItem()
     {
-        Debug.Log("PickupHead");
-        isHoldingHead = true;
+        isHoldingItem = true;
+        m_itemRigidbody.isKinematic = true;
+        m_itemCollider.enabled = false;
 
-        if (m_headRigidbody != null)
-        {
-            Destroy(m_headRigidbody);
-        }
-
-        Head.SetParent(transform);
-
-        Head.localPosition = m_headInitialLocalPos;
-        Head.localRotation = m_headInitialLocalRot;
+        m_currentItem.SetParent(HandTransform);
+        m_currentItem.localPosition = Vector3.zero;
+        m_currentItem.localRotation = Quaternion.identity;
     }
-} 
+
+    private void DropItem()
+    {
+        isHoldingItem = false;
+        m_currentItem.SetParent(null);
+        m_itemRigidbody.isKinematic = false;
+        m_itemCollider.enabled = true;
+        m_currentItem = null;
+    }
+
+    private void ThrowItem()
+    {
+        DropItem();
+        m_itemRigidbody.AddForce(BodyTransform.forward * ItemThrowForce, ForceMode.Impulse);
+    }
+}