Completed course 2 adn 3, working on 4

Assets/Scripts/CameraController.cs

@@ -1,17 +1,21 @@
 using System;
 using UnityEngine;
 using UnityEngine.Scripting.APIUpdating;
+using UnityEngine.UIElements;
 
 public class CameraController : MonoBehaviour
 {
+    public static CameraController instance;
     public float moveSpeed;
     public float zoomSpeed;
+    public float rotateSpeed;
     public float minZoomDist;
     public float maxZoomDist;
     private Camera cam;
     void Awake()
     {
         cam = Camera.main;
+        instance = this;
     }
     // Start is called once before the first execution of Update after the MonoBehaviour is created
     void Start()
@@ -24,8 +28,16 @@ public class CameraController : MonoBehaviour
     {
         Move();
         Zoom();   
+        Rotate();
     }
 
+    private void Rotate()
+    {
+        float leftInput = Input.GetKey(KeyCode.E) ? 1.0f : 0.0f;
+        float rightInput = Input.GetKey(KeyCode.Q) ? 1.0f : 0.0f;
+        float rotAmount = (rightInput - leftInput) * rotateSpeed * Time.deltaTime;
+        transform.Rotate(Vector3.up, rotAmount);
+    }
     private void Move()
     {
         float xInput = Input.GetAxisRaw("Horizontal");
@@ -35,12 +47,12 @@ public class CameraController : MonoBehaviour
     }
     private void Zoom()
     {
-        float scrollInput = Input.GetAxisRaw("Mouse ScrollWheel");
+        float scrollInput = Input.GetAxis("Mouse ScrollWheel");
         float dist = Vector3.Distance(transform.position, cam.transform.position);
         if(dist < minZoomDist && scrollInput > 0.0f)
-        return;
-        if(dist > maxZoomDist && scrollInput < 0.0f)
-        return;
+            return;
+        else if(dist > maxZoomDist && scrollInput < 0.0f)
+            return;
         cam.transform.position += cam.transform.forward * scrollInput * zoomSpeed;
     }
     public void FocusOnPosition(Vector3 pos)