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

public class EntityBase : MonoBehaviour
{
    public SpriteRenderer m_Shadow;

    protected SpriteRenderer m_SpriteRenderer;

    protected virtual void Awake()
    {
        m_SpriteRenderer = GetComponent<SpriteRenderer>();

        GameObject shadow = new GameObject("shadow");
        shadow.transform.parent = transform;
        shadow.transform.localPosition = Vector3.zero;
        shadow.transform.localScale = new Vector3(1, 0.5f, 1);
        SpriteRenderer sr = shadow.AddComponent<SpriteRenderer>();
        sr.material = new Material(Shader.Find("UI/SpriteSkewShader"));
        sr.material.SetFloat("_HorizontalSkew", 0.4f);
        sr.color = new Color(0, 0, 0, 0.4f);
        sr.sortingOrder = short.MinValue;
        m_Shadow = sr;
    }

    protected virtual void Update()
    {
        if (m_SpriteRenderer != null)
        {
            float y = transform.position.y;
            int order = -(int)(y * 100);
            if (order != m_SpriteRenderer.sortingOrder)
            {
                m_SpriteRenderer.sortingOrder = order;
            }
        }
    }

    protected virtual void LateUpdate()
    {
        if (m_Shadow != null)
        {
            if (m_Shadow.sprite != m_SpriteRenderer.sprite)
            {
                //m_Shadow.sprite = m_SpriteRenderer.sprite;
                //m_Shadow.flipX = m_SpriteRenderer.flipX;
            }
        }
    }

}