Character Controller Problems

Pommpeii

I'm following a tutorial on making an fps game but the gravity for the character controller isn't working... any thoughts?

using System.Collections;

using System.Collections.Generic;

using UnityEngine;

public class player_movement : MonoBehaviour

{

//variables

private CharacterController characterController;

private Vector3 moveDir;

public float speed = 5f;

private float gravity = 20f;

public float jumpForce = 10f;

private float verticalVelocity;

void Awake()

{

characterController = GetComponent<CharacterController>();

}

// Update is called once per frame

void Update()

{

ApplyGravity();

MovePlayer();

}

//player movement

void MovePlayer()

{

//movement vector3

moveDir = new Vector3(Input.GetAxis(Axis.HORIZONTAL), 0f, Input.GetAxis(Axis.VERTICAL));

//move direction

moveDir = transform.TransformDirection(moveDir);

moveDir *= speed * Time.deltaTime;

//move player

characterController.Move(moveDir);

}

//gravity

void ApplyGravity()

{

if(characterController.isGrounded)

{

//sets up gravity

verticalVelocity -= gravity * Time.deltaTime;

//jump

PlayerJump();

}

else

{

verticalVelocity -= gravity * Time.deltaTime;

}

//activates gravity

moveDir.y = verticalVelocity * Time.deltaTime;

}

//jumping

void PlayerJump()

{

if(characterController.isGrounded && Input.GetKeyDown(KeyCode.Space))

{

verticalVelocity = jumpForce;

}

}

} //class end

Pommpeii

@Mouledoux