public class NewBehaviourScript : MonoBehaviour {

   public float myTimer = 2.0f;  
   bool canGo = false;   
     
     void Update()   
     {   
         if(canGo)   
         {  
             if(myTimer > 0)
             {   
             myTimer -= Time.deltaTime;    
             transform.Translate(new Vector3(0.0f, 0.0f, 0.1f));  
                   if (myTimer <= 0.0f)  
                   {  
                      transform.Translate(new Vector3(0.0f, 0.0f, 0.0f));  
                 }  
             }    
         }    
    }  
    
   public void go()   
   {   
   canGo = true;   
   }
}