How can I have a function pause until a variable returns true?

Questions & Answers
1

So I’m working on part of a script that knocks the player back after being hit by an enemy. However, if you press any of the movement keys (A or D)… Basically you won’t be going anywhere. I was thinking I could disable the movement while being knocked back, and as soon as the player hits the ground, re-enable it. Here are the parts of the script in question:

var hurt:boolean = false;

function OnCollisionEnter2D(collision:Collision2D)
{
	if(collision.gameObject.tag == "Enemy")
	{
		hurt = true;
		var relativePoint = transform.InverseTransformPoint(collision.gameObject.transform.position);
		if(transform.localScale.x == 1)
		{
			if(relativePoint.x < 0.0)
			{
				rigidbody2D.velocity.x = 6;
			}
			if(relativePoint.x > 0.0)
			{
				rigidbody2D.velocity.x = -6;
			}
			rigidbody2D.velocity.y = 4;
		}
		if(transform.localScale.x == -1)
		{
			if(relativePoint.x > 0.0)
			{
				rigidbody2D.velocity.x = 6;
			}
			if(relativePoint.x < 0.0)
			{
				rigidbody2D.velocity.x = -6;
			}
			rigidbody2D.velocity.y = 4;
		}
		
		//Wait until grounded == true
		//Then do this:
		hurt = false;
	}
}

Then I added " && !hurt" to the if statements concerning left/right movement.

Anyways, see the commented part of that code. Any idea how I could do that? If I put it in a regular if statement, it won’t work, presumably because you’re on the ground when you’re actually hit.

2

Use a coroutine like this:

IEnumerator CheckBool () {
  while ( grounded != true) {
    yield return null; // wait until next frame
  }
  hurt = false;
}

Start this coroutine by:
StartCoroutine(CheckBool()); //