Tile Base Movement

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

public class GridMovement : MonoBehaviour
{
    public float moveDelay;
    public float restOfDelay;
    public Vector3 targetPos;
    public Vector3 targetRot;

    bool moving = false;

    private void Update()
    {
        if (!moving)
        {
            if (Input.GetKey(KeyCode.W))
            {
                targetPos = transform.position + (transform.forward * 3);
                StartCoroutine(Move());
            }
            else if (Input.GetKey(KeyCode.S))
            {
                targetPos = transform.position + (transform.forward * -3);
                StartCoroutine(Move());
            }
            else if (Input.GetKey(KeyCode.A))
            {
                // Rotation
                targetRot = transform.localEulerAngles;
                targetRot.y -= 90f;
                Debug.Log(targetRot);
                StartCoroutine(Rotating());
            }
            else if (Input.GetKey(KeyCode.D))
            {
                // Rotation
                targetRot = transform.localEulerAngles;
                targetRot.y += 90f;
                StartCoroutine(Rotating());
            }
        }
    }

    IEnumerator Move()
    {
        moving = true;
        float currTimer = 0;
        float delayPercentage = currTimer / moveDelay;
        Vector3 startPos = transform.position;

        targetPos.y = transform.position.y;

        while (currTimer < moveDelay)
        {
            currTimer += Time.deltaTime;
            delayPercentage = currTimer / moveDelay;
            transform.position = Vector3.Lerp(startPos, targetPos, delayPercentage);
            yield return null;
        }

        yield return new WaitForSeconds(restOfDelay);
        moving = false;
    }

    IEnumerator Rotating()
    {
        moving = true;
        float currTimer = 0;
        float delayPercentage = currTimer / moveDelay;
        Vector3 startRot = transform.localEulerAngles;

        while (currTimer < moveDelay)
        {
            currTimer += Time.deltaTime;
            delayPercentage = currTimer / moveDelay;
            transform.localEulerAngles = Vector3.Lerp(startRot, targetRot, delayPercentage);
            yield return null;
        }

        yield return new WaitForSeconds(restOfDelay);
        moving = false;
    }
}