Orbit Camera

using System.Collections;
using UnityEngine;

namespace Controller
{
    public class Controller_Camera : MonoBehaviour {

        public Transform viewTarget;
        public GameObject go;

        private Vector3 viewTarget_Orig;

        public float distance = 5.0f;
        public float maxDistance = 20f;
        public float minDistance = 0.6f;
        public float rotSpeed = 100f;
        public float panSpeed = 0.25f;
        public float zoomSpeed = 0.25f;

        public int yMinLimit = -80;
        public int yMaxLimit = 80;

        private float xDeg = 0.0f;
        private float yDeg = 0.0f;

        float x = 0;
        float y = 0;
        float z = 0;

        void OnEnable() { init(); }

        public void init()
        {
            if(!viewTarget)
            {
                if(!go)
                    go = new GameObject("Cam Target");
                go.transform.position = transform.position + (transform.forward * distance);
                viewTarget = go.transform;
                viewTarget_Orig = viewTarget.position;
            }

            distance = Vector3.Distance(transform.position, viewTarget.position);

            xDeg = Vector3.Angle(Vector3.right, transform.right);
            yDeg = Vector3.Angle(Vector3.up, transform.up);
        }

        private void FixedUpdate()
        {
            transform.LookAt(viewTarget);
        }

        void LateUpdate() {

            x += Input.GetAxis("Mouse X") * rotSpeed * 0.02f;
            y -= Input.GetAxis("Mouse Y") * rotSpeed * 0.02f;

            y = ClampAngle(y, yMinLimit, yMaxLimit);

            var rotation = Quaternion.Euler(y, x, z);
            var position = rotation * new Vector3(0.0f, 0.0f, -distance) + viewTarget.position; //Suspected Cause
            transform.rotation = rotation;
            transform.position = position;
        }

        static float ClampAngle(float angle , float min, float max)
        {
            if (angle < -360)
                angle += 360;
            if (angle > 360)
                angle -= 360;
            return Mathf.Clamp(angle, min, max);
        }
    }
}