fCraft.PlayerEnumerable.CanSee C# (CSharp) Method

        public static IEnumerable<Player> CanSee( [NotNull] this IEnumerable<Player> source, [NotNull] Player targetPlayer ) {
            if( source == null ) throw new ArgumentNullException( "source" );
            if( targetPlayer == null ) throw new ArgumentNullException( "targetPlayer" );
            foreach( Player player in source ) {
                if( player != targetPlayer && player.CanSee( targetPlayer ) ) {
                    yield return player;
                }
            }
        }