gistfile1.java

package com.aholacraft.lololmaker.aholavanish;

import java.util.HashSet;
import org.bukkit.ChatColor;
import org.bukkit.Server;
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.player.PlayerJoinEvent;
import org.bukkit.event.player.PlayerQuitEvent;
import org.bukkit.plugin.PluginManager;
import org.bukkit.plugin.java.JavaPlugin;

public class AholaVanish extends JavaPlugin
  implements Listener
{
  private final HashSet<String> vanished = new HashSet();
  public static final String VANISH_PERM = "aholavanish.vanish";

  public void onEnable()
  {
    getServer().getPluginManager().registerEvents(this, this);
  }

  public boolean onCommand(CommandSender sender, Command command, String label, String[] args)
  {
    if (args.length == 0) {
      if (!(sender instanceof Player)) {
        sender.sendMessage(new StringBuilder().append(ChatColor.DARK_RED).append("Can't vanish if not a player!").toString());
        return true;
      }

      if (!sender.hasPermission("aholavanish.vanish")) {
        sender.sendMessage(new StringBuilder().append(ChatColor.DARK_RED).append("You don't have permission to use AholaVanish!").toString());
        return true;
      }

      boolean vanishing = true;
      String bit;
      if (this.vanished.contains(sender.getName())) {
        vanishing = false;
        this.vanished.remove(sender.getName());
        String bit = "unvanished";
        sender.sendMessage(new StringBuilder().append(ChatColor.DARK_GREEN).append("You have unvanished!").toString());
      } else {
        this.vanished.add(sender.getName());
        bit = "vanished";
        sender.sendMessage(new StringBuilder().append(ChatColor.DARK_GREEN).append("You have vanished!").toString());
      }
      Player player = (Player)sender;
      for (Player plr : getServer().getOnlinePlayers()) {
        if ((vanishing) && (!plr.hasPermission("aholavanish.vanish")))
          plr.hidePlayer(player);
        else if ((!vanishing) && (!plr.canSee(player))) {
          plr.showPlayer(player);
        }

      }

      getServer().broadcast(new StringBuilder().append(ChatColor.AQUA).append(player.getName()).append(" has ").append(bit).toString(), "aholavanish.vanish");
    } else if (args[0].equalsIgnoreCase("list")) {
      if (((sender instanceof Player)) && (!sender.hasPermission("aholavanish.vanish"))) {
        sender.sendMessage(new StringBuilder().append(ChatColor.DARK_RED).append("You don't have permission to use AholaVanish!").toString());
        return true;
      }

      StringBuilder list = new StringBuilder();
      list.append(ChatColor.AQUA);
      list.append("Vanished (");
      list.append(this.vanished.size());
      list.append("): ");
      for (String name : this.vanished) {
        list.append(name);
        list.append(", ");
      }
      list.setLength(list.length() - 2);
      sender.sendMessage(list.toString());
    }
    return true;
  }
  @EventHandler
  public void onJoin(PlayerJoinEvent event) {
    if ((!event.getPlayer().hasPermission("aholavanish.vanish")) && (this.vanished.size() > 0)) {
      Player player = event.getPlayer();
      for (Player plr : getServer().getOnlinePlayers())
        if (this.vanished.contains(plr.getName()))
          player.hidePlayer(plr);
    }
  }

  @EventHandler
  public void onQuit(PlayerQuitEvent event)
  {
    if (this.vanished.contains(event.getPlayer().getName())) {
      Player player = event.getPlayer();
      this.vanished.remove(event.getPlayer().getName());
      for (Player plr : getServer().getOnlinePlayers())
        if ((plr != null) && (!plr.canSee(event.getPlayer())))
          plr.showPlayer(player);
    }
  }
}