Unity PlayerMovement

 

using System.Collections;

using System.Collections.Generic;

using UnityEngine;

using UnityEngine.AI;

public class PlayerMovement : MonoBehaviour

{

    public CharacterController controller;

    public NavMeshAgent playerNavMeshAgent;

    public float speed = 12f;

    public float gravity = -9.81f;

    public float jumpHeight = 3f;

    public Transform groundCheck;

    public float groundDistance = 0.4f;

    public LayerMask groundMask;

    public Vector3 clickPos;

    Vector3 velocity;

    bool isGrounded;

    public bool isClicked;

   

    // Update is called once per frame

    void Update()

    {

        if (Input.GetKey(KeyCode.LeftAlt))

        {

            playerNavMeshAgent.enabled = true;

            controller.enabled = false;

            if (Input.GetMouseButtonDown(0))

            {

                MoveClickPosition();

            }

        }

        gravityMove();

        if (isClicked)

        {

           

        }

        else

        {

            NormalMove();

        }

        if (Input.GetAxis("Horizontal") != 0 || Input.GetAxis("Vertical") != 0)

        {

            playerNavMeshAgent.enabled = false;

            controller.enabled = true;

            isClicked = false;

        }

        //if (Input.anyKeyDown)

        //{

        //    if (isClicked)

        //        isClicked = false;

        //}

    }

    void NormalMove()

    {

        float x = Input.GetAxis("Horizontal");

        float z = Input.GetAxis("Vertical");

        Vector3 move = transform.right * x + transform.forward * z;

        controller.Move(move * speed * Time.deltaTime);

       

    }

    void gravityMove()

    {

        if (Input.GetButtonDown("Jump") && isGrounded)

        {

            velocity.y = Mathf.Sqrt(jumpHeight * -2f * gravity);

        }

        isGrounded = Physics.CheckSphere(groundCheck.position, groundDistance, groundMask);

        if (isGrounded && velocity.y < 0)

        {

            velocity.y = -2f;

        }

        velocity.y += gravity * Time.deltaTime;

        controller.Move(velocity * Time.deltaTime);

    }

    void MoveClickPosition()

    {

        isClicked = true;

        Ray ray = Camera.main.ScreenPointToRay(Input.mousePosition);

        if (Physics.Raycast(ray, out RaycastHit raycastHit))

        {

            playerNavMeshAgent.SetDestination(raycastHit.point);

        }

    }

}