unity topdown movement code example

Example 1: how to make a top down movement in unity 2020

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

public class PlayerMovement : MonoBehaviour
{
    public float moveSpeed = 5f;

    public Rigidbody2D rb;
    public Camera cam;

    Vector2 movement;
    Vector2 mousePos;

    // Update is called once per frame
    void Update()
    {
        movement.x = Input.GetAxisRaw("Horizontal");
        movement.y = Input.GetAxisRaw("Vertical");


        mousePos = cam.ScreenToWorldPoint(Input.mousePosition);
    }

    private void FixedUpdate()
    {
        rb.MovePosition(rb.position + movement * moveSpeed * Time.fixedDeltaTime);

        Vector2 lookDir = mousePos - rb.position;
        float angle = Mathf.Atan2(lookDir.y, lookDir.x) * Mathf.Rad2Deg - 90f;
        rb.rotation = angle;
    }
}

Example 2: top down movement unity

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

public class PlayerMovement : MonoBehaviour
{
    public float moveSpeed = 5f;

    public Rigidbody2D rb;
    public Animator animator;

    Vector2 movement;

    
    void Update()
    {
        movement.x = Input.GetAxisRaw("Horizontal");
        movement.y = Input.GetAxisRaw("Vertical");


     // This is if you have a float in an animator you want to change if moving 
        animator.SetFloat("Speed", movement.sqrMagnitude);

     // Flip player when x change, use only if you want
        Vector3 characterScale = transform.localScale;
        if (Input.GetAxis("Horizontal") < 0)
        {
            characterScale.x = -1;
        }
        if (Input.GetAxis("Horizontal") > 0)
        {
            characterScale.x = 1;
        }
        transform.localScale = characterScale;

    }

    void FixedUpdate()
    {
        rb.MovePosition(rb.position + movement * moveSpeed * Time.fixedDeltaTime);
    }

    
}