Unity - Cable Physics

Cable.cs

using System.Collections.Generic;
using UnityEngine;

public class Chain : MonoBehaviour
{
    public float width = 0.1f;
    public int segments = 10;
    public Material material;
    public float mass = 0.1f;
    public float spring = 10f;
    public float damper = 10f;
    public float limit = 0.1f;
    public float drag = 0.2f;
    public float angularDrag = 0.1f;

    public Transform start;
    public Transform end;

    private List<Rigidbody> _rigidbodies = new();
    private LineRenderer _lineRenderer;

    void Start()
    {
        if (segments < 2) segments = 2;

        var startPosition = start.position;
        var endPosition = end.position;

        _lineRenderer = gameObject.AddComponent<LineRenderer>();
        _lineRenderer.positionCount = segments;
        _lineRenderer.startWidth = width;
        _lineRenderer.endWidth = width;
        _lineRenderer.material = material;

        for (var i = 0; i < segments; i++)
        {
            var segment = new GameObject("Segment" + i);
            segment.transform.position = Vector3.Lerp(startPosition, endPosition, (float) i / (segments - 1));
            segment.transform.parent = transform;
            var sc = segment.gameObject.AddComponent<SphereCollider>();
            sc.radius = width / 2f;

            var rb = segment.gameObject.AddComponent<Rigidbody>();
            rb.mass = mass;
            rb.useGravity = true;
            rb.isKinematic = false;
            rb.drag = drag;
            rb.angularDrag = angularDrag;
            _rigidbodies.Add(rb);
            
            if(i>0 && i < segments)
            {
                var joint = segment.gameObject.AddComponent<ConfigurableJoint>();
                joint.connectedBody = _rigidbodies[i - 1];
                joint.xMotion = ConfigurableJointMotion.Limited;
                joint.yMotion = ConfigurableJointMotion.Limited;
                joint.zMotion = ConfigurableJointMotion.Limited;
                joint.angularXMotion = ConfigurableJointMotion.Locked;
                joint.angularYMotion = ConfigurableJointMotion.Locked;
                joint.angularZMotion = ConfigurableJointMotion.Locked;
                joint.linearLimitSpring = new SoftJointLimitSpring {spring = spring, damper = damper};
                joint.linearLimit = new SoftJointLimit {limit = limit};
            }
        }

        var firstRb = _rigidbodies[0];
        var lastRb = _rigidbodies[_rigidbodies.Count - 1];

        // first and last rigidbodies are kinematic
        firstRb.isKinematic = true;
        lastRb.isKinematic = true;

        // first and last segments are connected to start and end
        firstRb.transform.position = startPosition;
        firstRb.transform.parent = start;
        lastRb.transform.position = endPosition;
        lastRb.transform.parent = end;
    }

    void Update()
    {
        for (int i = 0; i < _rigidbodies.Count; i++)
        {
            _lineRenderer.SetPosition(i, _rigidbodies[i].transform.position);
        }
    }
}