一：效果演示

二：实现

——导入Dotween插件

——完整代码

using System;
using UnityEngine;
using DG.Tweening;

public class EffectManager : MonoBehaviour
{
    private static EffectManager _instance;
    public static EffectManager Instance
    {
        get
        {
            if (_instance == null)
            {
                GameObject go = new GameObject(typeof(EffectManager).ToString());
                DontDestroyOnLoad(go);
                _instance = go.AddComponent<EffectManager>();

            }
            return _instance;
        }
    }

    /// <summary>
    /// 显示奖励特效
    /// </summary>
    /// <param name="_startPos">实例化出来的位置</param>
    /// <param name="_targetPos">目标位置</param>
    /// <param name="_parent">父物体</param>
    /// <param name="prefabName">预制体名称</param>
    /// <param name="_num">实例化的数量</param>
    /// <param name="_callback">回调</param>
    public void ShowAwardEffect(Vector3 _startPos, Vector3 _targetPos, Transform _parent, string prefabName, int _num = 10, Action _callback = null)
    {
        //渲染UI的相机名称和画布名称
        Camera uiCamera = GameObject.Find("UICamera").GetComponent<Camera>();
        Canvas uiCanvas = GameObject.Find("UICanvas").GetComponent<Canvas>();
        if (uiCamera == null || uiCanvas == null)
        {
            return;
        }

        for (int i = 0; i < _num; i++)
        {
            GameObject prefab = Instantiate(Resources.Load<GameObject>(prefabName));//根据项目路径进行修改
            prefab.transform.SetParent(_parent, false);
            float randomTime = UnityEngine.Random.Range(0.4f, 0.6f);
            prefab.transform.position = _startPos;
            prefab.transform.DOMove(_startPos + UnityEngine.Random.insideUnitSphere, UnityEngine.Random.Range(0.4f, 0.6f)).SetEase(Ease.OutSine).OnComplete
                (
                    () =>
                    {
                        prefab.transform.DOMove(_targetPos, UnityEngine.Random.Range(0.8f, 1.2f)).SetEase(Ease.InOutSine).OnComplete
                        (
                            () =>
                            {
                                Destroy(prefab);
                                _callback?.Invoke();
                            }
                        );
                    }
                );
        }
    }
}