HK_LongZhiMeng/Assets/Scripts/Lumos.cs

using UnityEngine;
using UniRx;
public class Lumos : MonoBehaviour
{
    public Color NormalColor = Color.white;
    public Color TargetColor = Color.red;

    private float time;
    private bool LumosReady;
    public float Interval = 0.3f;

    private void Start()
    {
        Observable.EveryLateUpdate()
            .Where(_=>this.enabled)
            .Subscribe(_ => 
            {
                time += Time.deltaTime;
                if (time > Interval)
                {
                    time = 0.0f;
                    LumosReady = !LumosReady;
                }

                if (LumosReady)
                    GetComponent<Renderer>().material.SetColor("_Color", NormalColor);
                else
                    GetComponent<Renderer>().material.SetColor("_Color", TargetColor);
            }).AddTo(gameObject);
    }

    private void OnDisable()
    {
        GetComponent<Renderer>().material.SetColor("_Color", NormalColor);
    }
}