bukkit - 事件错误

Question

使用 CraftBukkit 1.7.9

你好，

每当我输入一个符号“Minigame”时，它根本不起作用。

这是我的代码：

package me.pvpcraftnetwork.customjoinsigns;


import java.util.HashMap;

import org.bukkit.Location;
import org.bukkit.entity.Player;
import org.bukkit.event.EventHandler;
import org.bukkit.event.Listener;
import org.bukkit.event.block.BlockBreakEvent;
import org.bukkit.event.block.SignChangeEvent;
import org.bukkit.event.player.PlayerInteractEvent;
import org.bukkit.plugin.java.JavaPlugin;


public class Main extends JavaPlugin implements Listener {
        public final HashMap<Location, String> signs =  new HashMap<Location, String>();

        public static Main plugin;

        public void onEnable(){
            plugin = this;
            getLogger().info("[PvpCraft Network] {Custom Join Signs} has been enabled!");
        }

        public void onDisable() {
            plugin = null;
            getLogger().info("[PvpCraft Network] {Custom Join Signs} has been disabled!");
        } 
        @EventHandler
        public void onSignChange(SignChangeEvent event){
            if(event.getLine(0).equalsIgnoreCase("Minigame")) {
                signs.put(event.getBlock().getLocation(), event.getPlayer().getName());
                event.getPlayer().sendMessage("[PvpCraft Network] {Custom Join Signs} Custom Join Sign created! Now type in: /cjs [Custom Join Sign Arena Number] setarenaname");
            }
        }

        @EventHandler
        public void onBlockBreak(BlockBreakEvent event){
            Player player = event.getPlayer();  
            if(signs.containsKey(event.getBlock().getLocation()) && !signs.containsValue(event.getPlayer().getName()) || !player.isOp()) {
                event.setCancelled(true);   
            } else {
                signs.remove(event.getBlock().getLocation());
            }
        }

        @EventHandler
        public void onPlayerInteract(PlayerInteractEvent event){
            Player player = event.getPlayer();
            if(signs.containsKey(event.getClickedBlock().getLocation())) {
                player.teleport(player.getWorld().getSpawnLocation());
            }
        }
    }

在第一个事件中，我希望它是这样的：

每当我输入一个符号“Minigame”时，它都会发送消息。

但是，我也想要它“ if(player.isOp());”（如果玩家是服务器上的Op），我不知道放在哪里。

有什么帮助吗？

Answer 1

这是因为您没有注册事件。在您的Main班级（那个extends JavaPlugin）中，您需要将其添加到您的onEnable()：

this.getServer().getPluginManager().registerEvents(this, new <listener class>());

因此，在您的情况下，您应该添加以下内容：

this.getServer().getPluginManager().registerEvents(this, this);

所以你的onEnable()和onDisable()方法应该是这样的：

public void onEnable(){
  plugin = this;

  this.getServer().getPluginManager().registerEvents(this, this);

  getLogger().info("[PvpCraft Network] {Custom Join Signs} has been enabled!");
}

public void onDisable() {
  plugin = null;
  getLogger().info("[PvpCraft Network] {Custom Join Signs} has been disabled!");
}

你应该if(player.isOp())这样写：

@EventHandler
public void onSignChange(SignChangeEvent event){
  boolean isOp = event.getPlayer().isOp();//I don't know what you want to do with this, so, you could just use this boolean to check if the player is an op or not
  if(event.getLine(0).equalsIgnoreCase("Minigame")) {
    signs.put(event.getBlock().getLocation(), event.getPlayer().getName());
    event.getPlayer().sendMessage("[PvpCraft Network] {Custom Join Signs} Custom Join Sign created! Now type in: /cjs [Custom Join Sign Arena Number] setarenaname");
  }
}