fCraft.WorldCommands.SetRankMainWorld C# (CSharp) Method

        static void SetRankMainWorld( Player player, Rank rank, World world ) {
            if( world == rank.MainWorld ) {
                player.Message( "World {0}&S is already set as main for {1}&S.",
                                world.ClassyName, rank.ClassyName );
                return;
            }

            if( world == WorldManager.MainWorld ) {
                if( rank.MainWorld == null ) {
                    player.Message( "The main world for rank {0}&S is already {1}&S (default).",
                                    rank.ClassyName, world.ClassyName );
                } else {
                    rank.MainWorld = null;
                    WorldManager.SaveWorldList();
                    Server.Message( "&SPlayer {0}&S has reset the main world for rank {1}&S.",
                                    player.ClassyName, rank.ClassyName );
                    Logger.Log( LogType.UserActivity,
                                "{0} reset the main world for rank {1}.",
                                player.Name, rank.Name );
                }
                return;
            }

            if( world.AccessSecurity.MinRank > rank ) {
                player.Message( "World {0}&S requires {1}+&S to join, so it cannot be used as the main world for rank {2}&S.",
                                world.ClassyName, world.AccessSecurity.MinRank, rank.ClassyName );
                return;
            }

            rank.MainWorld = world;
            WorldManager.SaveWorldList();
            Server.Message( "&SPlayer {0}&S designated {1}&S to be the main world for rank {2}",
                            player.ClassyName, world.ClassyName, rank.ClassyName );
            Logger.Log( LogType.UserActivity,
                        "{0} set {1} to be the main world for rank {2}.",
                        player.Name, world.Name, rank.Name );
        }