用Java写一个我的世界120玩家可以随意在子服之间传送的功能

以下是一个简单的Java代码示例，实现了玩家在子服之间传送的功能：

import java.util.HashMap;
import java.util.Map;

public class MyWorld {
    private Map<String, SubServer> subServers;

    public MyWorld() {
        subServers = new HashMap<>();
    }

    public void addSubServer(SubServer subServer) {
        subServers.put(subServer.getName(), subServer);
    }

    public void teleportPlayer(String playerName, String subServerName) {
        if (!subServers.containsKey(subServerName)) {
            System.out.println("SubServer " + subServerName + " does not exist.");
            return;
        }

        SubServer subServer = subServers.get(subServerName);
        subServer.addPlayer(playerName);
        System.out.println("Player " + playerName + " has been teleported to SubServer " + subServerName);
    }

    public static void main(String[] args) {
        MyWorld myWorld = new MyWorld();

        SubServer subServer1 = new SubServer("SubServer1");
        SubServer subServer2 = new SubServer("SubServer2");

        myWorld.addSubServer(subServer1);
        myWorld.addSubServer(subServer2);

        myWorld.teleportPlayer("Player1", "SubServer1");
        myWorld.teleportPlayer("Player2", "SubServer2");
        myWorld.teleportPlayer("Player3", "SubServer3"); // 不存在的子服
    }
}

class SubServer {
    private String name;
    private Map<String, Player> players;

    public SubServer(String name) {
        this.name = name;
        players = new HashMap<>();
    }

    public String getName() {
        return name;
    }

    public void addPlayer(String playerName) {
        players.put(playerName, new Player(playerName));
    }
}

class Player {
    private String name;

    public Player(String name) {
        this.name = name;
    }

    public String getName() {
        return name;
    }
}

这个示例中，MyWorld 类代表整个游戏世界，其中包含了多个子服（SubServer）对象。SubServer 类代表每个子服，其中包含了多个玩家（Player）对象。

在 MyWorld 类中，我们可以通过 addSubServer 方法添加子服，通过 teleportPlayer 方法实现玩家在子服之间的传送。在 main 方法中，我们创建了两个子服，并将玩家传送到指定的子服中。如果传入的子服不存在，则会输出错误信息。

请注意，这只是一个简单的示例，实际的实现可能会更加复杂，需要考虑玩家的状态、传送的逻辑等等。