movement

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

public class PlayerMovement : MonoBehaviour
{
    Vector2 _currentMovement;
    Vector3 _moveDirection;
    private Vector3 _velocity;
    [SerializeField] private Transform _cameraT;
    [SerializeField] float GravityMultiplier;
    [SerializeField] private float _currentSpeed = 2.0f;
    [SerializeField] internal float jumpHeightMultiplier = 1.0f;
    private float _walkMovementSpeed = 2f;
    private float _runMovementSpeed = 5.25f;
    private float _gravityValue = -9.81f;

    private CharacterController controller;
    private PlayerController playerController;

    private void Awake()
    {
        playerController = new PlayerController();
    }
    private void Start()
    {
        controller = GetComponent<CharacterController>();
    }
    private void OnEnable()
    {
        playerController.Enable();
    }
    private void OnDisable()
    {
        playerController.Disable();
    }

    void Update()
    {
        HandleMovement();
        HandleJump();
    }

    Vector3 Gravity()
    {
        if (!controller.isGrounded)
        {
            _velocity.y += _gravityValue * GravityMultiplier * Time.deltaTime;
        }
        else
        {
            _velocity.y = -1.0f;
        }
        return _velocity;
    }

    void HandleMovement()
    {
        _currentMovement = playerController.Player.Movement.ReadValue<Vector2>();
        _moveDirection = _cameraT.forward * _currentMovement.y + _cameraT.right * _currentMovement.x;

        _moveDirection.y = Gravity().y;

        controller.Move(_moveDirection.normalized * Time.deltaTime * _currentSpeed);
    }

    void HandleJump()
    {
        if (playerController.Player.Jump.triggered && controller.isGrounded)
        {
            _velocity.y += Mathf.Sqrt(-_gravityValue * jumpHeightMultiplier);
        }
        controller.Move(_velocity * Time.deltaTime);
    }
}