카메라 회전 일단 구현

Assets/Data.meta

+fileFormatVersion: 2
+guid: f6226b2548447a54486acfc694a44e4d
+folderAsset: yes
+DefaultImporter:
+  externalObjects: {}
+  userData: 
+  assetBundleName: 
+  assetBundleVariant: 

Assets/Scenes/SampleScene.unity

@@ -276,6 +276,7 @@ MonoBehaviour:
   m_Script: {fileID: 11500000, guid: c7d507df55441f7438f6f059e9d2587c, type: 3}
   m_Name: 
   m_EditorClassIdentifier: 
+  dragSpeed: 10
 --- !u!114 &2102809461 stripped
 MonoBehaviour:
   m_CorrespondingSourceObject: {fileID: 7277015661519863741, guid: 20dee07e28273f049a9093ae4453912f,
@@ -490,6 +491,11 @@ PrefabInstance:
       propertyPath: m_LocalEulerAnglesHint.z
       value: 0
       objectReference: {fileID: 0}
+    - target: {fileID: 1444571407667829093, guid: 0b18400fb62a12d4e9cb5fbb8ecbb53f,
+        type: 3}
+      propertyPath: m_LocalPosition.z
+      value: 0
+      objectReference: {fileID: 0}
     m_RemovedComponents: []
   m_SourcePrefab: {fileID: 100100000, guid: 0b18400fb62a12d4e9cb5fbb8ecbb53f, type: 3}
 --- !u!1001 &5089720519379341084

Assets/Scripts/CameraController.cs

@@ -4,6 +4,8 @@ using UnityEngine;
 
 public class CameraController : MonoBehaviour
 {
+    Vector3 dragOrigin;
+    public float dragSpeed;
 
     void CameraMove()
     {
@@ -12,15 +14,40 @@ public class CameraController : MonoBehaviour
         transform.position += new Vector3(verticalInput + horizontalInput, 0, verticalInput - horizontalInput);
     }
 
+    void CameraDrag()
+    {
+
+        if (Input.GetMouseButtonDown(1))
+        {
+            dragOrigin = Input.mousePosition;
+            return;
+        }
+
+        if (!Input.GetMouseButton(1)) return;
+
+        float deg = Mathf.Atan2(transform.position.z, transform.position.x);
+        float dis = Vector3.Distance(Vector3.zero, transform.position - new Vector3(0, transform.position.y, 0));
+
+        float dif = Camera.main.ScreenToViewportPoint(Input.mousePosition - dragOrigin).x * dragSpeed;
+
+        transform.position = new Vector3(Mathf.Cos(deg + dif) * dis, transform.position.y, Mathf.Sin(deg + dif) * dis);
+        transform.LookAt(new Vector3(0, 0, 0));
+        dragOrigin = Input.mousePosition;
+    }
+
     // Start is called before the first frame update
     void Start()
     {
         
     }
 
+
+
     // Update is called once per frame
     void Update()
     {
         CameraMove();
+        CameraDrag();
     }
+
 }