Loop inside StartCoroutine: how to avoid it?

Questions & Answers
1

Hi, I´m new to unity(started learning it last week) and I´m currently trying to develop a speech bubble to stay always on top of the player. The bubble will be invisible at first sight but, from time to time, it will appear with a random joke.

I already know how to play with the alpha of it(it´s a sprite renderer), so I made this:

public float segBalaoAparecer;
	public float segBalaoDesaparecer;
	public SpriteRenderer spriteDesaparecer;
	// Use this for initialization
	void Start () {
		spriteDesaparecer.color = new Color (1f, 1f, 1f, 0f);//sprite invisivel no comeco
		StartCoroutine("showBaloon");
	}
	IEnumerator showBaloon()
	{
		while (true) 
		{
			yield return new WaitForSeconds(segBalaoAparecer);
			Debug.Log("showBaloon chamada");
			spriteDesaparecer.color = new Color (1f, 1f, 1f, 1f);
			Debug.Log("balao ficou visivel");
			yield return new WaitForSeconds(segBalaoDesaparecer);
			spriteDesaparecer.color = new Color (1f, 1f, 1f, 0f);
			Debug.Log("balao ficou invisivel");
		}

	}

the problem is: showBaloon has a while(true) inside it and I´m afraid of freezing the game because of it. Can anyone help me overcome it? Oh, and the method must have these waitForSeconds, I can´t remove them.

2

While does not execute infinitely here. Because each loop first complete its execution and then start to execute next time.

In this you have specified WaitForSeconds() two times, so it wait for those completion and then start next time execution.

I think you understand my point here.