u3d-master-2d-book/Assets/Scripts/Sorting.cs

using UnityEngine;


public class Sorting : MonoBehaviour
{
    public Transform player;
    // Update is called once per frame
    void Update()
    {
        if (transform.position.y >= player.transform.position.y)
        {
            //Debug.Log("behind player");
            GetComponent<SpriteRenderer>().sortingOrder = (player.GetComponent<SpriteRenderer>().sortingOrder) - 1;
            GetComponents<BoxCollider2D>()[1].enabled = false;
            GetComponents<BoxCollider2D>()[2].enabled = true;
        }
        if (transform.position.y < player.transform.position.y)
        {
            //Debug.Log("in front of player");
            GetComponent<SpriteRenderer>().sortingOrder = (player.GetComponent<SpriteRenderer>().sortingOrder) + 1;
            GetComponents<BoxCollider2D>()[1].enabled = true;
            GetComponents<BoxCollider2D>()[2].enabled = false;
        }
    }
}