title: How to give for users extra lives for watching Unity Ads?
body: <p>I want to give for users extra lives for watching Unity Ads in my small game making in Unity. But I don't know how to do it.</p>
  
  <p>To showing ads I using that:</p>
  
  <pre><code>void Awake()
  {
      Advertisement.Initialize (gameID, true);
  }
  
  public void ShowAd()
  {
  #if UNITY_EDITOR
      StartCoroutine(WaitForAd ());
  #endif
  
      if (Advertisement.IsReady ())
          Advertisement.Show ();
  }
  
  IEnumerator WaitForAd()
  {
      float currentTimeScale = Time.timeScale;
      Time.timeScale = 0f;
      yield return null;
  
      while (Advertisement.isShowing)
          yield return null;
  
      Time.timeScale = currentTimeScale = 0f;
  </code></pre>
  
  <p>I counting lives in another script using for example </p>
  
  <pre><code>if (other.gameObject.CompareTag ("Meteor")) {
      other.gameObject.SetActive (false);
      count_lives = count_lives - 1;
      SetLivesText ();
  }
  </code></pre>
  
  <p>but <code>count_lives = count_lives +1</code> in script for unity ads not works, btw I using UnityEngine.UI for display the number of lives. Maybe it can be connected with button for start display Ads?</p>