fCraft.Player.RemoveEntity C# (CSharp) Method

        private void RemoveEntity( [NotNull] Player player )
        {
            if ( player == null )
                throw new ArgumentNullException( "player" );
            SendNow( PacketWriter.MakeRemoveEntity( entities[player].Id ) );
            freePlayerIDs.Push( entities[player].Id );
            entities.Remove( player );
        }