Player object moves when I start moving my mouse to the right or left

[V1Dragon1V]

So as the title suggest, everytime I move my mouse to the right or left, the character starts rotating which is supposed to happen ofcourse. However, it also moves the player object to the side im turning it to. Here is the code for my playermovement script. Also, im new to these discussions so every little bit of information is appreciated on how to handle discussions! Thank you in advance.

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

[RequireComponent(typeof(CharacterController))]
public class PlayerMovement : MonoBehaviour
{
    public Camera playerCamera;
    public float walkSpeed = 6f;
    public float runSpeed = 12f;
    public float jumpPower = 7f;
    public float gravity = 10f;
    public float lookSpeed = 2f;
    public float lookXLimit = 45f;
    public float defaultHeight = 2f;
    public float crouchHeight = 1f;
    public float crouchSpeed = 3f;

    private Vector3 moveDirection = Vector3.zero;
    private float rotationX = 0;
    private CharacterController characterController;

    private bool canMove = true;

    //Alteruna
    private Alteruna.Avatar avatar;

    void Start()
    {
        avatar = GetComponent<Alteruna.Avatar>();

        if (!avatar.IsMe)
        {
            return;
        }

        characterController = GetComponent<CharacterController>();
        Cursor.lockState = CursorLockMode.Locked;
        Cursor.visible = false;
    }

    void Update()
    {
        if (!avatar.IsMe)
        {
            return;
        }

        Vector3 forward = transform.TransformDirection(Vector3.forward);
        Vector3 right = transform.TransformDirection(Vector3.right);

        bool isRunning = Input.GetKey(KeyCode.LeftShift);
        float curSpeedX = canMove ? (isRunning ? runSpeed : walkSpeed) * Input.GetAxis("Vertical") : 0;
        float curSpeedY = canMove ? (isRunning ? runSpeed : walkSpeed) * Input.GetAxis("Horizontal") : 0;
        float movementDirectionY = moveDirection.y;
        moveDirection = (forward * curSpeedX) + (right * curSpeedY);

        if (Input.GetButton("Jump") && canMove && characterController.isGrounded)
        {
            moveDirection.y = jumpPower;
        }
        else
        {
            moveDirection.y = movementDirectionY;
        }

        if (!characterController.isGrounded)
        {
            moveDirection.y -= gravity * Time.deltaTime;
        }

        if (Input.GetKey(KeyCode.LeftControl) && canMove)
        {
            characterController.height = crouchHeight;
            walkSpeed = crouchSpeed;
            runSpeed = crouchSpeed;

        }
        else
        {
            characterController.height = defaultHeight;
            walkSpeed = 6f;
            runSpeed = 12f;
        }

        characterController.Move(moveDirection * Time.deltaTime);

        if (canMove)
        {
            rotationX += -Input.GetAxis("Mouse Y") * lookSpeed;
            rotationX = Mathf.Clamp(rotationX, -lookXLimit, lookXLimit);
            playerCamera.transform.localRotation = Quaternion.Euler(rotationX, 0, 0);
            transform.rotation *= Quaternion.Euler(0, Input.GetAxis("Mouse X") * lookSpeed, 0);
        }
    }
}

[Cyber_Cats]

Hello V1Dragon1V,

The only line that has an impact on the character’s movement is the line:

        characterController.Move(moveDirection * Time.deltaTime);

You use moveDirection to apply a movement to your character, if we check the value of moveDirection we can see that it contains “forward” which is the direction your character is facing, so in order words you are turning your character to the left and telling him to move towards this direction.

If you put a little 3d cube inside your character like a pointing arrow you will be able to see where it’s facing and understand what’s happening