Ways to Unity 15: Use Threading or Timer or Coroutine to show or hide an object

What we did

When we get powerup, we show the powerupIndicator, then we start a coroutine.
The coroutine function will wait for 7 seconds, then hide the powerupIndicator.

The Code 

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

public class PlayerController : MonoBehaviour
{
    public GameObject powerupIndicator;
    void Start()
    {
    }

    void Update()
    {
    }

    IEnumerator PowerupCountdownRoutine() {
        yield return new WaitForSeconds(7);
        powerupIndicator.SetActive(false);
    }

    private void OnTriggerEnter(Collider other) {
        if (other.CompareTag("Powerup"))
        {
            powerupIndicator.SetActive(true);
            StartCoroutine(PowerupCountdownRoutine());
        }
    }
}

The man behind this article

https://yingshaoxo.blogspot.com/2020/12/ways-to-unity-15-use-threading-or-timer.html

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