Add picking up mechanic

Assets/Prefabs/Environment/Stick.prefab

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Assets/Prefabs/Player/Player.prefab

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   m_LocalPosition: {x: 0, y: 1.5, z: 0}
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@@ -230,3 +262,24 @@ CharacterController:
   m_SkinWidth: 0.08
   m_MinMoveDistance: 0.001
   m_Center: {x: 0, y: 0.9, z: 0}
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Assets/Prefabs/UI/Pause Menu.prefab

@@ -12,7 +12,7 @@ GameObject:
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   - component: {fileID: 5400695019851472735}
   m_Layer: 5
-  m_Name: Text
+  m_Name: Pause Text
   m_TagString: Untagged
   m_Icon: {fileID: 0}
   m_NavMeshLayer: 0

Assets/Scripts/Item.cs

@@ -0,0 +1,37 @@
+using System.Collections;
+using System.Collections.Generic;
+using UnityEngine;
+
+[RequireComponent(typeof(Rigidbody))]
+public class Item : MonoBehaviour {
+    [Header("Runtime values")]
+    public bool Grabbed = false;
+
+    private Rigidbody Body;
+    private Transform World;
+
+    private void Awake() {
+        Body = GetComponent<Rigidbody>();
+        World = GameObject.FindGameObjectWithTag("World").transform;
+    }
+
+    private void Update() {
+        if (Grabbed) {
+            transform.localPosition = Vector3.Lerp(transform.localPosition, Vector3.zero, 10f * Time.deltaTime);
+            transform.localRotation = Quaternion.Slerp(transform.localRotation, Quaternion.identity, 10f * Time.deltaTime);
+        }
+    }
+
+    public void PickUp(Transform handTransform) {
+        transform.parent = handTransform;
+        Body.isKinematic = true;
+        Grabbed = true;
+    }
+
+    public void Drop(Vector3 throwVector) {
+        transform.parent = World;
+        Body.isKinematic = false;
+        Body.AddForce(throwVector, ForceMode.VelocityChange);
+        Grabbed = false;
+    }
+}

Assets/Scripts/Item.cs.meta

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Assets/Scripts/ItemGrabber.cs

@@ -0,0 +1,51 @@
+using System.Collections;
+using System.Collections.Generic;
+using UnityEngine;
+
+public class ItemGrabber : MonoBehaviour {
+    public Transform CameraTransform;
+    public Transform HandTransform;
+    public CanvasGroup GrabHint;
+    public LayerMask ItemLayer;
+    public float Distance;
+    public float ThrowVelocity;
+
+    [Header("Runtime values")]
+    public Item GrabbedItem;
+
+    private void Awake() {
+        if (GrabHint == null) {
+            Debug.LogWarning("Player's GrabHint is not set, and pick ups will not be indicated.");
+        }
+    }
+
+    private void Update() {
+        Item Item = null;
+        RaycastHit Hit;
+        Vector3 From = CameraTransform.position;
+        Vector3 Direction = CameraTransform.forward;
+        if (GrabbedItem == null) {
+            if (Physics.Raycast(From, Direction, out Hit, Distance, ItemLayer) &&
+                    Hit.collider.attachedRigidbody != null) {
+                Item = Hit.collider.attachedRigidbody.GetComponent<Item>();
+            }
+
+            if (Item != null && Input.GetButtonDown("Grab")) {
+                Item.PickUp(HandTransform);
+                GrabbedItem = Item;
+            }
+        } else if (Input.GetButtonDown("Grab")) {
+            Vector3 Forward = CameraTransform.forward;
+            if (Physics.Raycast(From, Direction, out Hit, 10f)) {
+                // Throw direction should be where we're pointign, but slightly upwards
+                Forward = (Hit.point - From).normalized + Vector3.up;
+            }
+            GrabbedItem.Drop(Forward * ThrowVelocity);
+            GrabbedItem = null;
+        }
+
+        if (GrabHint != null) {
+            GrabHint.alpha = Mathf.Lerp(GrabHint.alpha, Item != null ? 1 : 0, 10f * Time.deltaTime);
+        }
+    }
+}

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Assets/Scripts/PauseMenu.cs

@@ -8,6 +8,7 @@ public class PauseMenu : MonoBehaviour {
 
     private void Awake() {
         Canvas = GetComponent<CanvasGroup>();
+        Canvas.alpha = Paused ? 1 : 0;
     }
 
     private void Update() {

ProjectSettings/InputManager.asset

@@ -38,7 +38,7 @@ InputManager:
     axis: 0
     joyNum: 0
   - serializedVersion: 3
-    m_Name: Fire1
+    m_Name: Grab
     descriptiveName: 
     descriptiveNegativeName: 
     negativeButton: 
@@ -182,7 +182,7 @@ InputManager:
     axis: 1
     joyNum: 0
   - serializedVersion: 3
-    m_Name: Fire1
+    m_Name: Grab
     descriptiveName: 
     descriptiveNegativeName: 
     negativeButton: 

ProjectSettings/TagManager.asset

@@ -5,6 +5,7 @@ TagManager:
   serializedVersion: 2
   tags:
   - Pause Menu
+  - World
   layers:
   - Default
   - TransparentFX
@@ -16,7 +17,7 @@ TagManager:
   - 
   - Post-Processing
   - Campfire
-  - 
+  - Item
   - 
   - 
   -