free rotate camera

Assets/Scripts/Management/CameraController.cs

@@ -2,17 +2,46 @@
 using System.Linq;
 using Unity.VisualScripting;
 using UnityEngine;
+using static UnityEngine.GraphicsBuffer;
 
 public class CameraController : MonoBehaviour
 {
     public float camTargetRotation { get; private set; } = 0;
+    public CameraControlMode CamControlMode { get; private set; } = CameraControlMode.SnapRotate;
+    public Camera MainCamera;
+
     private bool isCamRotating = false;
-    
+
+    [Header("Free Cam Settings")]
+    public float mouseSensitivity = 200f;
+    public float minPitch = -30f;
+    public float maxPitch = 60f;
+    public float distance = 6f;
+    public float heightOffset = -0.5f;
+    public float followSpeed = 10f;
+    public float maxZoom = 6f;
+    public float minZoom = 1f;
+    private float zoom = 2.3f;
+    private float yaw;
+    private float pitch;
+
     public Transform playerCamHome;
+    Transform dougBody;
 
     private void Update()
     {
-        HandleCamRotation();
+        if (Input.GetMouseButton(1))
+        {
+            HandleFreeCamRotation();
+        }
+    }
+
+    void Start()
+    {
+        Vector3 angles = transform.eulerAngles;
+
+        yaw = angles.y;
+        pitch = angles.x;
     }
 
     /// <summary>
@@ -31,26 +60,27 @@ public void RotateCam()
     /// <summary>
     /// Set cam rotation immediately
     /// </summary>
-    public void SnapToRotation(float rotation)
+    void SnapToRotation(float rotation)
     {
-        playerCamHome.RotateAround(
-            transform.position,
-            Vector3.up,
-            rotation
-        );
+        if (CamControlMode == CameraControlMode.SnapRotate)
+        {
+            playerCamHome.RotateAround(
+                transform.position,
+                Vector3.up,
+                rotation
+            );
 
-        camTargetRotation = rotation;
+            camTargetRotation = rotation;
+        }
     }
 
     /// <summary>
     /// Move cam to desired rotation (every frame)
     /// </summary>
-    void HandleCamRotation()
+    void HandleSnapCamRotation()
     {
         float currentY = playerCamHome.transform.rotation.eulerAngles.y;
-
         float step = 200 * Time.deltaTime;
-
         float newY = Mathf.MoveTowardsAngle(currentY, camTargetRotation, step);
 
         playerCamHome.RotateAround(
@@ -64,4 +94,56 @@ void HandleCamRotation()
             isCamRotating = false;
         }
     }
+
+    /// <summary>
+    /// Move cam to desired free rotation (every frame)
+    /// </summary>
+    void HandleFreeCamRotation()
+    {
+        if (dougBody == null)
+        {
+            dougBody = GameManager.Instance.PlayerController.DougBody.transform;
+        }
+
+        Vector3 target = new Vector3(dougBody.position.x, dougBody.position.y + heightOffset, dougBody.position.z);
+
+        // Mouse Input
+        float mouseX = Input.GetAxis("Mouse X");
+        float mouseY = Input.GetAxis("Mouse Y");
+
+        yaw += mouseX * mouseSensitivity * Time.deltaTime;
+        pitch -= mouseY * mouseSensitivity * Time.deltaTime;
+
+        pitch = Mathf.Clamp(pitch, minPitch, maxPitch);
+
+        // Zoom
+        float scroll = Input.GetAxis("Mouse ScrollWheel");
+
+        zoom -= scroll * 2f;
+        zoom = Mathf.Clamp(zoom, minZoom, maxZoom);
+        MainCamera.orthographicSize = zoom;
+
+        // Rotation
+        Quaternion rotation = Quaternion.Euler(pitch, yaw, 0);
+
+        // Desired Position
+        Vector3 offset = rotation * Vector3.forward * -distance;
+        Vector3 desiredPosition = target + offset;
+
+        // Smooth Follow
+        playerCamHome.transform.position = Vector3.Lerp(
+            playerCamHome.transform.position,
+            desiredPosition,
+            followSpeed * Time.deltaTime
+        );
+
+        // Look at player
+        playerCamHome.transform.LookAt(target + Vector3.up);
+    }
+}
+
+public enum CameraControlMode
+{
+    SnapRotate,
+    FreeRotate
 }