Label Randamize Animation for nGUI Unity

LabelRandamize.cs

using UnityEngine;
using System.Collections;

[AddComponentMenu("NGUI/Tween/Ex/Label Randamize")]
public class LabelRandamize : MonoBehaviour {
	public UILabel label;
	public bool autoDestroy = false;
	
	const string randamText = "abcdefghijklmnopqrstuvwxyzABCDEFGHIJKLMNOPQRSTUVWXYZ11234567890";
	
	[SerializeField] string text;
	float randomTime;
	float startTime;
	int randomIndex;
	
	void Start () {
		if (label == null) {
			label = GetComponent<UILabel>();
		}
		this.enabled = false;
		if(text != null) {
			RandomText(text, randomTime);
		}
	}
	
	void Update () {
		// update text
		string str = "";
		
		if(randomIndex <= 0) {
			this.enabled = false;
			label.text = this.text;
			if(autoDestroy) {
				Destroy(this);
			}
			return;
		}
		
		for(int i=0; i<randomIndex; ++i) {
			str += GetRandChar();
		}
		label.text = str;
		
		
		if(Time.time-startTime > randomTime) {
			randomIndex--;
			str = text.Substring(0, text.Length-randomIndex) + str;
		}
	}
	
	public void RandomText(string text, float time) {
		this.text = text;
		this.randomTime = time;
		this.enabled = true;
		this.startTime = Time.time;
		this.randomIndex = text.Length;
	}
	
	public static LabelRandamize MakeRandomLabel(GameObject go, string text, float time) {
		LabelRandamize r = go.AddComponent<LabelRandamize>();
		r.autoDestroy = true;
		r.RandomText(text, time);
		return r;
	}
	
	char GetRandChar() {
		return randamText[Random.Range(0, randamText.Length)];
	}
}

Usage

LabelRandamize.MakeRandomLabel(uilabel.gameObject, "hogehoge", 0.1f);