Smooth Player Ball Rolling - Unity 3D - unity3d

Question

I was trying to achieve this kind of player ball movement:
Catch Up (Ketchapp)
From my side I have tried and record a video of my current implementation:
CatchUpBallMovementDemo
Two kinds of problem, I was facing:
ball making so much jerk while moving on the plain track that I hope you have clearly noticed in my recorded video
when ball reach left or right edge and you try to swipe its making jerk again rather than remain restricted because clamping related code already added
I have just created a demo project so here I am providing the link for it so personally you can check and provide me a suggestion for making ball movement perfect.
Demo Project Source Link: CatchUpBallDemo
Demo Project SIZE 20MB
What at present making jerk in ball movement that I can't able to decide, whether its following camera jerk, whether ball not moving properly though I have created a plain track for checking purpose.
Ball Inspector Detail:
Complete code added within the working demo project. Share your suggestions with me to solve this.
Code Scripts:
BallController
[RequireComponent (typeof(Rigidbody))]
public class BallController : MonoBehaviour
{
//
private Rigidbody myRigidBody;
private bool isJumper;
private bool allowSpeedIncrease;
private BallInputHandler ballInputHandler;
private float speed;
private float speedMilestone;
private float jumpCounter;
private float scoreElapsedTime;
[SerializeField]
private bool isGrounded;
//
public float ballHorzRange;
public float ballStartSpeed;
public float ballTopSpeed;
public float smoothnessValue;
public float smoothnessX;
private void Awake ()
{
DoOnAwake ();
}
private void DoOnAwake ()
{
ballInputHandler = GetComponent<BallInputHandler> ();
myRigidBody = GetComponent<Rigidbody> ();
speed = ballStartSpeed;
speedMilestone = ballStartSpeed;
}
public void Start ()
{
DoOnStart ();
}
private void DoOnStart ()
{
// assinging player transform to camera to follow
Camera.main.GetComponent<CameraFollow> ().FollowPlayer (transform);
}
void Update ()
{
// slowly increase ball moving speed
if (allowSpeedIncrease) {
speed += Time.deltaTime;
if (speed >= speedMilestone) {
allowSpeedIncrease = false;
speed = speedMilestone;
}
}
}
void FixedUpdate ()
{
// do jumping
if (isJumper) {
jumpCounter++;
if (jumpCounter >= 3) {
isJumper = false;
jumpCounter = 0;
}
myRigidBody.AddForce (Vector3.up * 700f);
}
// applying continuous forward velocity
Vector3 nextVelocity = myRigidBody.velocity;
nextVelocity.x = ballInputHandler.horizontalInput * smoothnessX;
nextVelocity.z = speed;
if (isGrounded) {
nextVelocity.y = 0;
} else if (!isJumper) {
nextVelocity.y -= speed * 0.1f;
}
myRigidBody.velocity = nextVelocity.normalized * speed;
ClampingBallMovement ();
}
// ball horizontal movement limitation
private void ClampingBallMovement ()
{
Vector3 currRigidbodyPos = myRigidBody.position;
if (currRigidbodyPos.x <= -ballHorzRange || currRigidbodyPos.x >= ballHorzRange) {
currRigidbodyPos.x = Mathf.Clamp (currRigidbodyPos.x, -ballHorzRange, ballHorzRange);
myRigidBody.position = currRigidbodyPos;
}
}
void OnTriggerEnter (Collider other)
{
if (other.CompareTag (GameConstants.TAG_TRACK_SPAWNER)) {
GameController.Instance.SpawnPlateform ();
} else if (other.CompareTag (GameConstants.TAG_TRACK_DESTROYER)) {
Destroy (other.transform.parent.gameObject);
}
}
}
BallMeshRolling
public class BallMeshRolling : MonoBehaviour
{
private Vector3 ballLastPosition;
void Start ()
{
ballLastPosition = transform.parent.position;
}
void Update ()
{
// implementation-1
float speed = Vector3.Distance (transform.parent.position, ballLastPosition) * 30f;
transform.RotateAround (transform.position, Vector3.right, speed);
// float dragDifference = (transform.position.x - ballLastPosition.x) * 30f;
// transform.RotateAround (transform.position, Vector3.forward, dragDifference);
ballLastPosition = transform.parent.position;
}
}
CameraFollow
public class CameraFollow : MonoBehaviour
{
//
private Vector3 newPos;
private Vector3 initialPosition;
//
public Transform player;
public Vector3 offSet;
void Awake ()
{
initialPosition = transform.position;
}
void LateUpdate ()
{
if (!player)
return;
newPos = player.position + offSet;
newPos.x = ReMap (newPos.x);
newPos.y = Mathf.Clamp (newPos.y, initialPosition.y, initialPosition.y + 1f);
// transform.position = newPos;
transform.position = Vector3.Lerp (transform.position, newPos, 10f * Time.deltaTime);
}
public void FollowPlayer (Transform target)
{
player = target;
ResetCamera ();
}
public float ReMap (float value, float from1 = -4f, float to1 = 4f, float from2 = -2.5f, float to2 = 2.5f)
{
return (value - from1) / (to1 - from1) * (to2 - from2) + from2;
}
public void ResetCamera ()
{
transform.position = initialPosition;
}
}

Answer 1

I could solve the second problem by simply adding this to BallController.ClampingBallMovement():
private void ClampingBallMovement ()
{
Vector3 currRigidbodyPos = myRigidBody.position;
if (currRigidbodyPos.x <= -ballHorzRange || currRigidbodyPos.x >= ballHorzRange) {
currRigidbodyPos.x = Mathf.Clamp (currRigidbodyPos.x, -ballHorzRange, ballHorzRange);
myRigidBody.position = currRigidbodyPos;
}
// I ADDED THIS
// Clamp the velocity as well
if (currRigidbodyPos.x <= -ballHorzRange && myRigidBody.velocity.x < 0 || currRigidbodyPos.x >= ballHorzRange && myRigidBody.velocity.x > 0)
{
myRigidBody.velocity = new Vector3(0, myRigidBody.velocity.y, myRigidBody.velocity.z);
}
}
you clamped the position but did not clamp the velocity as well.
I could not reproduce the first jerking arround on my PC.