Ошибка CS1525 Unexpected symbol

using System.Collections;
using System.Collections.Generic;
using UnityEngine;
 
public class PlayerMovement : MonoBehaviour
{
    public CharacterController controller;
 
    public float speed = 12f;
    public float gravity = -9.81f;
    public float jumpHeight =3f;
 
    public Transform groundCheck;
    public float groundDistance = 0.4f;
    public LayerMask groundMask;
 
    Vector3 velocity;
    bool isGrounded;
 
    // Update is called once per frame
    void Update ()
    {
        isGrounded = Physics.CheckSphere(groundCheck.position, groundDistance, groundMask);
 
        if(isGrounded && velocity.y < 0)
        {
            velocity.y = 2f;
        }
 
        float x = Input.GetAxis("Horizontal");
        float z = Input.GetAxis("Vertical");
 
        Vector3 move = transform.right * x + transform.forward * z;
 
        controller.Move(move * speed * Time.deltaTime);
 
        id(Input.GetButtonDown("Jump") && isGrounded)
        {
            velocity.y = Mathf.Sqrt(jumpHeight * -2f * gravity);
        }
 
        velocity.y += gravity * Time.deltaTime;
 
        controller.Move(velocity * Time.deltaTime);
    }
}