Scriptum/Assets/Scripts/Player.cs

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

public class  Player : MonoBehaviour
{

    Rigidbody2D rb;
    private Animator myAnimator;
    float walkSpeed = 4f;
    float speedLimiter = 0.7f;
    float inputHorizontal;
    float inputVertical;

    void Start()
    {
        rb = gameObject.GetComponent<Rigidbody2D>();
        myAnimator = GetComponent<Animator>();
    }

    void Update()
    {
        inputHorizontal = Input.GetAxisRaw("Horizontal");
        inputVertical = Input.GetAxisRaw("Vertical");

        myAnimator.SetFloat("moveX", inputHorizontal * walkSpeed);
        myAnimator.SetFloat("moveY", inputVertical * walkSpeed);
        if (inputHorizontal != 0)
        {
            myAnimator.SetFloat("speed", walkSpeed);
        }
        else if (inputVertical != 0)
        {
            myAnimator.SetFloat("speed", walkSpeed);
        }
        else
        {
            myAnimator.SetFloat("speed", 0);
        }

        if (inputHorizontal == 1 || inputHorizontal == -1 || inputVertical == 1 || inputVertical == -1)
        {
            myAnimator.SetFloat("lastMoveX", inputHorizontal);
            myAnimator.SetFloat("lastMoveY", inputVertical);
        }
    }

    void FixedUpdate()
    {
        if(inputHorizontal != 0 || inputVertical != 0)
        {
            if(inputHorizontal != 0 && inputVertical != 0)
            {
                inputHorizontal *= speedLimiter;
                inputVertical *= speedLimiter;
            }
            rb.velocity = new Vector2(inputHorizontal * walkSpeed, inputVertical * walkSpeed);
        }
        else
        {
            rb.velocity = new Vector2(0f, 0f);
        }
    }

}