MovementWithJumping

using System.Collections;
using System.Collections.Generic;
using UnityEngine;

public class MovementWithJumping : MonoBehaviour
{

    public float speed;
    public float rotationSpeed;
    public float jumpSpeed;

    float originalSetpOffset;

    float ySpeed;

    private CharacterController characterController;

    void Start()
    {
        characterController = GetComponent<CharacterController>();
        originalSetpOffset = characterController.stepOffset;
    }

    void Update()
    {
        float horizontalInput = Input.GetAxis("Horizontal");
        float verticalInput = Input.GetAxis("Vertical");

        Vector3 movementDirection = new Vector3(horizontalInput, 0, verticalInput);
        float magnitude = Mathf.Clamp01(movementDirection.magnitude) * speed;
        movementDirection.Normalize();

        ySpeed += Physics.gravity.y * Time.deltaTime;

        if (Input.GetButtonDown("Jump"))
        {

            characterController.stepOffset = originalSetpOffset;

            ySpeed = jumpSpeed;
        }
        else
        {
            characterController.stepOffset = 0;
        }

        Vector3 velocity = movementDirection * magnitude;
        velocity.y = ySpeed;

        characterController.Move(velocity * Time.deltaTime);


        if (movementDirection != Vector3.zero)
        {
            Quaternion toRotation = Quaternion.LookRotation(movementDirection, Vector3.up);
            transform.rotation = Quaternion.RotateTowards(transform.rotation, toRotation, rotationSpeed * Time.deltaTime);
        }

    }