NanoPark/Assets/Scripts/DontMove.cs

    using UnityEngine;
     
    public class DontMove : MonoBehaviour
    {
        new Rigidbody rigidbody;
        public Vector3 position, velocity, angularVelocity;
        public bool isColliding;
     
        void Awake()
        {
            rigidbody = GetComponent<Rigidbody>();
        }
     
        void FixedUpdate()
        {
            if (!isColliding)
            {
                position = rigidbody.position;
                velocity = rigidbody.velocity;
                angularVelocity = rigidbody.angularVelocity;
            }
        }
     
        void LateUpdate()
        {
            if (isColliding)
            {
                rigidbody.position = position;
                rigidbody.velocity = velocity;
                rigidbody.angularVelocity = angularVelocity;
            }
        }
     
        void OnCollisionEnter(Collision collision)
        {
            if (collision.collider.tag == "Player")
                isColliding = true;
        }
     
        void OnCollisionExit(Collision collision)
        {
            if (collision.collider.tag == "Player")
                isColliding = false;
        }
    }