/// <summary>
/// adds snapshot listener to document, so OnEvent would be called if there's a change
/// </summary>
/// <param name="cName">collection name</param>
/// <param name="dName">document name</param>
/// <param name="gameActivity">game activity</param>
public void AddSnapShotListenerToDocument(string cName, string dName, GameActivity gameActivity)
{
firestore.Collection(cName).Document(dName).AddSnapshotListener(gameActivity);
}
/// <summary>
/// adds snapshot listener to collection, so OnEvent would be called if there's a change
/// </summary>
/// <param name="cName">collection name</param>
/// <param name="activity">game gameActivity</param>
public void AddSnapshotListenerToCollection(string cName, GameActivity gameActivity)
{
firestore.Collection(cName).AddSnapshotListener(gameActivity);
}