UnityのWaitWhileでループを作れるっぽい

WaitWhileExperiment.cs

void Start () {
		StartCoroutine (WaitWhileExperiment ());
	}

	IEnumerator WaitWhileExperiment(){
		int a = 0;
		yield return new WaitWhile (() => {
			a++;
			Debug.Log(a);
			return a < 10;
		});
		Debug.Log ("End");
	}
	/* Output:
	 * 1
	 * 2
	 * 3
	 * 4
	 * 5
	 * 6
	 * 7
	 * 8
	 * 9
	 * 10
	 * End
	*/