Schutzschild

package me.Wolf.LobbySystem.ItemManager;

import java.util.ArrayList;
import java.util.HashMap;
import me.Wolf.LobbySystem.main.main;
import org.bukkit.Effect;
import org.bukkit.Location;
import org.bukkit.Server;
import org.bukkit.World;
import org.bukkit.entity.Entity;
import org.bukkit.entity.Player;
import org.bukkit.event.EventHandler;
import org.bukkit.event.Listener;
import org.bukkit.event.block.Action;
import org.bukkit.event.player.PlayerInteractEvent;
import org.bukkit.event.player.PlayerQuitEvent;
import org.bukkit.inventory.ItemStack;
import org.bukkit.inventory.meta.ItemMeta;
import org.bukkit.plugin.PluginManager;
import org.bukkit.scheduler.BukkitRunnable;
import org.bukkit.util.Vector;

public class Item_schild
  implements Listener
{
  private main plugin;

  public Item_schild(main main)
  {
    this.plugin = main;
    this.plugin.getServer().getPluginManager().registerEvents(this, main);
  }

  @EventHandler
  public void onInteract(PlayerInteractEvent e)
  {
    final Player p = e.getPlayer();
    if (((e.getAction() == Action.RIGHT_CLICK_BLOCK ? 1 : 0) | (e.getAction() == Action.RIGHT_CLICK_AIR ? 1 : 0)) != 0) {
      try
      {
        if (e.getItem().getItemMeta().getDisplayName().equalsIgnoreCase("§3Schutzschild"))
        {
          if (!main.saving.contains(p.getName()))
          {
            main.saving.add(p.getName());

            main.schild.put(p.getName(), new BukkitRunnable()
            {
              public void run()
              {
                p.getWorld().playEffect(p.getLocation(), Effect.ENDER_SIGNAL, 1);
                p.getWorld().playEffect(p.getEyeLocation(), Effect.ENDER_SIGNAL, 1);
                for (Entity en : p.getNearbyEntities(4.0D, 4.0D, 4.0D)) {
                  if ((en instanceof Player))
                  {
                    Player target = (Player)en;

                    double ax = p.getLocation().getX();
                    double ay = p.getLocation().getX();
                    double az = p.getLocation().getZ();

                    double bx = target.getLocation().getX();
                    double by = target.getLocation().getY();
                    double bz = target.getLocation().getZ();

                    double x = bx - ax;
                    double y = by - ay;
                    double z = bz - az;

                    Vector v = new Vector(x, y, z).normalize().multiply(2.0D).setY(0.3D);
                    if (target.hasPermission("system.use.schutzschild")) {
                      return;
                    }
                    target.setVelocity(v);
                  }
                }
              }
            });
            ((BukkitRunnable)main.schild.get(p.getName())).runTaskTimer(this.plugin, 0L, 2L);

            p.sendMessage(main.prefix + "Dein Schutzschild wurde §aAktiviert§7.");
            return;
          }
          if (main.saving.contains(p.getName()))
          {
            main.saving.remove(p.getName());

            main.schild.get(p.getName());
            ((BukkitRunnable)main.schild.get(p.getName())).cancel();
            main.schild.remove(p.getName());
            p.sendMessage(main.prefix + "Dein Schutzschild wurde §4Deaktiviert§7.");
            return;
          }
        }
      }
      catch (Exception localException) {}
    }
  }

  @EventHandler
  public void onQuit(PlayerQuitEvent e)
  {
    Player p = e.getPlayer();
    if (main.saving.contains(p.getName()))
    {
      main.saving.remove(p.getName());

      main.schild.get(p.getName());
      ((BukkitRunnable)main.schild.get(p.getName())).cancel();
      main.schild.remove(p.getName());
      p.sendMessage(main.prefix + "Dein Schutzschild wurde §4Deaktiviert§7.");
    }
  }
}