CODEWITHSUNDEEP
c#unity-game-enginecoroutine
drpelz
drpelz

Reputation: 811

How to execute Coroutine from external GameObject which has been destroyed

I want to start a Coroutine from another script. The Coroutine is inside of the PlayerControl-script and the EnemyControl-script holds the line that fires off the Coroutine. The problem is the Coroutine doesn’t get executed because the gameobject holding the EnemyControl-script gets destroyed.

Now my question is: How do you start a Coroutine even when the gameobject gets destroyed? I just ask because I heard that Coroutines stop working when the gameobject gets destroyed.

The EnemyControl-script that invokes the Coroutine:

int achieveResult2 = PlayerPrefsManager.GetAchievement("achieveFirstKill_Key");

        if (achieveResult2 == 0) {
            PlayerPrefsManager.SetAchievement ("achieveFirstKill_Key", 1);

            playerShip.GetComponent<PlayerControl>().achievements.Add("First Kill");
            playerShip.GetComponent<PlayerControl>().achieveCntr = playerShip.GetComponent<PlayerControl>().achievements.Count;

            StartCoroutine(ShowAchievements());
        }

The Coroutine inside of the PlayerControl-script:

public IEnumerator ShowAchievements () {
    yield return new WaitForSeconds(0.5f);

    for (int i = 0; i < achieveCntr; i++) {

        achievementText.GetComponent<AchievementTxt> ().ShowAchieveText (achievements [i]);
        achievementText.GetComponent<AchievementTxt> ().achieveTxtTimerRunning = true;

        achievements.Remove(achievements [i]);

        yield return new WaitForSeconds(2f);
    }
}

Upvotes: 0

Views: 117

Answers (1)

derHugo
derHugo

Reputation: 90679

Just add a method you call to the player which starts the Coroutine locally.

Than you can destroy the enemy object safely since it is not responsible for starting the Coroutine anymore:

PlayerControl

public void ShowAchievements()
{
    StartCoroutine (ShowAchievementsRoutine ());
}

private IEnumerator ShowAchievementsRoutine () 
{
    yield return new WaitForSeconds(0.5f);

    for (int i = 0; i < achieveCntr; i++) 
    {

        achievementText.GetComponent<AchievementTxt> ().ShowAchieveText (achievements [i]);
        achievementText.GetComponent<AchievementTxt> ().achieveTxtTimerRunning = true;

        achievements.Remove(achievements [i]);

        yield return new WaitForSeconds(2f);
    }
}

And call it as a normal method from the Enemy:

 playerShip.GetComponent<PlayerControl>().ShowAchievements();

Upvotes: 2

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