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一：效果演示

二：完整代码

using UnityEngine;using System.Collections.Generic;public class GhostEffect : MonoBehaviour{    [Header("是否开启残影效果")]    public bool openGhoseEffect;    [Header("是否开启褪色消失")]    public bool openFade;    [Header("显示残影的持续时间")]    public float durationTime;    [Header("生成残影与残影之间的时间间隔")]    public float spawnTimeval;    private float spawnTimer;//生成残影的时间计时器    [Header("残影颜色")]    public Color ghostColor;    [Header("残影层级")]    public int ghostSortingOrder;    private SpriteRenderer sr;//SpriteRenderer    private List
   
     ghostList = new List
    
     ();//残影列表    private void Awake()    {        sr = GetComponent
     
      ();    }    private void Update()    {        if (openGhoseEffect == false)        {            return;        }        DrawGhost();        Fade();    }    /// 
      
    /// 绘制残影    /// 
    private void DrawGhost()    {        if (spawnTimer >= spawnTimeval)        {            spawnTimer = 0;            GameObject _ghost = new GameObject();            ghostList.Add(_ghost);            _ghost.name = "ghost";            _ghost.AddComponent
      
       ();            _ghost.transform.position = transform.position;            _ghost.transform.localScale = transform.localScale;            SpriteRenderer _sr = _ghost.GetComponent
       
        ();            _sr.sprite = sr.sprite;            _sr.sortingOrder = ghostSortingOrder;            _sr.color = ghostColor;            if (openFade == false)            {                Destroy(_ghost, durationTime);            }        }        else        {            spawnTimer += Time.deltaTime;        }    }    /// 
        
 /// 褪色操作 /// 
    private void Fade()    {        if (openFade == false)        {            return;        }        for (int i = 0; i < ghostList.Count; i++)        {            SpriteRenderer ghostSR = ghostList[i].GetComponent
        
         (); if (ghostSR.color.a <= 0) { GameObject tempGhost = ghostList[i]; ghostList.Remove(tempGhost); Destroy(tempGhost); } else { float fadePerSecond = (ghostColor.a / durationTime); Color tempColor = ghostSR.color; tempColor.a -= fadePerSecond * Time.deltaTime; ghostSR.color = tempColor; } } }}
        
       
      
     
    
   

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