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  | using System; 
 |  using UnityEngine; 
 |  using UnityEngine.UI; 
 |    
 |  namespace vnxbqy.UI { 
 |    
 |      [RequireComponent(typeof(Text))] 
 |      public class RollNumber:MonoBehaviour { 
 |    
 |          [SerializeField] 
 |          Text m_Text; 
 |          public Text text { 
 |              get { 
 |                  return m_Text; 
 |              } 
 |          } 
 |    
 |          float to = 0; 
 |          float from = 0; 
 |          float now = 0; 
 |    
 |          float duration = 0f; 
 |          float timer = 0f; 
 |          Action endCallBack = null; 
 |    
 |          public void Perform(int _from,int _to,float _duration,Action _callBack) { 
 |              ResetTimer(); 
 |              duration = Mathf.Clamp(_duration,0f,float.MaxValue); 
 |              from = _from; 
 |              to = _to; 
 |              endCallBack = _callBack; 
 |          } 
 |    
 |          private void LateUpdate() { 
 |              if(timer < duration) { 
 |                  timer += Time.deltaTime; 
 |                  now = Mathf.Lerp(from,to,Mathf.Clamp01(timer / duration)); 
 |                  if(timer > duration) { 
 |                      ResetTimer(); 
 |                      now = to; 
 |                      if(endCallBack != null) { 
 |                          endCallBack(); 
 |                          endCallBack = null; 
 |                      } 
 |                  } 
 |    
 |                  if(text != null) { 
 |                      var nowInt = (int)now; 
 |                      text.text = nowInt.ToString(); 
 |                  } 
 |              } 
 |          } 
 |    
 |          private void ResetTimer() { 
 |              timer = 0f; 
 |              duration = 0f; 
 |          } 
 |      } 
 |  } 
 |  
  |