java - Spigot 使用命令取消注册事件

Question

我制作了一个注册事件的插件，我想制作一个取消注册它的命令，我该怎么做，我已经搜索了2个小时，但什么也没找到。我想让/Pvpeventon 启动事件并/Pvpeventoff 关闭它这是我已经编写的代码: 包me.leopa.R1.FFA；

import org.bukkit.command.Command;
import org.bukkit.command.CommandSender;
import org.bukkit.entity.Player;
import org.bukkit.event.EventHandler;
import org.bukkit.event.Listener;

import org.bukkit.event.entity.PlayerDeathEvent;
import org.bukkit.event.player.PlayerQuitEvent;
import org.bukkit.plugin.java.JavaPlugin;




public class MainFFA extends JavaPlugin implements Listener{
@Override
public void onEnable() {
    System.out.println("[INFO Leopa] Start");
    super.onEnable();
}

@Override
public void onDisable() {
System.out.println("[INFO Leopa] Stop");
super.onDisable();
}

@Override
public boolean onCommand(CommandSender sender, Command command, String    label, String[] args) {

    if(command.getName().equalsIgnoreCase("PVPEVENTon")) {
        getServer().getPluginManager().registerEvents(this, this);
    }

    if(command.getName().equalsIgnoreCase("PVPEVENToff")) {
        getServer().getPluginManager().
    }
    return super.onCommand(sender, command, label, args);


    }
@EventHandler
public void onDeathPVPEVENT(PlayerDeathEvent pvpevent) {
    Player p = pvpevent.getEntity();
    p.sendMessage("HI");
}





}`

Answer 1

您应该简化事件并添加boolean，而不是取消注册事件作为变量，变成 false何时应禁用 PVP 以及 true如果允许 PVP:

//Some Listener class
...
private YourPlugin plugin; //example
...
@EventHandler
public void playerDeath(PlayerDeathEvent event) {
    if(plugin.isEventMode()) {  //TODO when event mode is on }
}

插件类

...
public class YourPlugin extends JavaPlugin {
    ...
    private boolean eventMode; //false per default
    ...

    public boolean toggleEventMode() {
        eventMode = !eventMode; //negation so if it is true it will be turned into false if it is false it will be turned to true
        return eventMode;
    }
    public boolean isEventMode() {
        return eventMode;
    }
}

命令切换事件模式:

//is declared somewhere
boolean eventMode = plugin.toggleEventMode();
//true if eventMode is on false if not.

注意您还可以使用 setEventMode方法。

您还可以使用 unregisterAll取消注册 Listener 中所有事件的方法或Plugin :

HandlerList.unregisterAll(this); //takes a listener or a plugin. In your case you got all stuff in one class it should still work.

检查这些方法:

• HandlerList#unregister(Plugin)
• HandlerList#unregister(Listener)
• HandlerList#unregisterAll(Plugin)
• HandlerList#unregisterAll(Listener)