Unity3D character not moving in the direction its facing

Question

I have two scripts: one for my player movement and another for my mouse-look. The problem is that when I look in a direction my player moves in another.

Here is my Mouse Look Script:

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

public class MouseLook : MonoBehaviour
{
// Mouse Direction
private Vector2 mD;

private Transform myBody;

// Start is called before the first frame update
void Start()
{
    myBody = this.transform.parent.transform;
}

// Update is called once per frame
void Update()
{
    // How much has the mouse moved?
    Vector2 mC = new Vector2 (Input.GetAxisRaw("Mouse X"), Input.GetAxisRaw("Mouse Y"));

    mD += mC;

    this.transform.localRotation = Quaternion.AngleAxis(-mD.y, Vector3.right);

    myBody.localRotation = Quaternion.AngleAxis(mD.x, Vector3.up);
     }
}

Here is my player movement script:

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

public class Player : MonoBehaviour
{
Vector3 moveVector = Vector3.zero;
CharacterController characterController;

public float MoveSpeed;
public float JumpSpeed;
public float Gravity;

// Start is called before the first frame update
void Start()
{
    characterController = GetComponent<CharacterController>();
}

// Update is called once per frame
void Update()
{
    moveVector.x = Input.GetAxis("Horizontal") * MoveSpeed;
    moveVector.z = Input.GetAxis("Vertical") * MoveSpeed;

    if (characterController.isGrounded && Input.GetButton("Jump"))
    {
        moveVector.y = JumpSpeed;
    }

    moveVector.y -= Gravity * Time.deltaTime;

    characterController.Move(moveVector * Time.deltaTime);
    }
}

I am new to unity, so if you do know the answer I would appreciate it if you would explain it:)

Answer 1

One way to quickly fix what you have is to multiply your moveVector by the rotation of the player:

characterController.Move(transform.rotation * moveVector * Time.deltatime);

This will rotate your vector by the rotation of the player making it point in the same direction.

Another way to do this would be to use transform.forward and transform.right :

float moveX = Input.GetAxis("Horizontal") * MoveSpeed;
float moveZ = Input.GetAxis("Vertical") * MoveSpeed;

movementVector = (transform.forward * moveZ) + (transform.right * moveX);

transform.forward gets the forward vector of your object so you can use it to make sure the character moves forward on its forward.