Main урок 4

package nms.main;

import java.util.Arrays;
import java.util.Random;

import org.bukkit.Material;
import org.bukkit.Sound;
import org.bukkit.command.Command;
import org.bukkit.command.CommandSender;
import org.bukkit.configuration.file.FileConfiguration;
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.PlayerJoinEvent;
import org.bukkit.inventory.ItemStack;
import org.bukkit.inventory.meta.ItemMeta;
import org.bukkit.plugin.java.JavaPlugin;

public class Main extends JavaPlugin implements Listener
{

    private FileConfiguration config;

    @Override
    public void onEnable() {
        config = getConfig();
        config.options().copyDefaults(true);
        saveDefaultConfig();
        getServer().getPluginManager().registerEvents(this, this);
        getCommand("heal").setExecutor(new CommadHeal());
        if(config.getBoolean("mes.enable") == false) getServer().getPluginManager().disablePlugin(this); else {
            return;
        }
    }

    @Override
    public boolean onCommand(CommandSender sender, Command command, String lbl, String[] args) {
        if(lbl.equalsIgnoreCase("setmessage"))
        {
            StringBuilder sb = new StringBuilder();
            for(int i =0; i < args.length; i++)
            {
                sb.append(args[i] + " ");
            }
            String mes = sb.toString();
            config.set("mes.string", mes);
            saveConfig();
        }
        return false;
    }

    @EventHandler
    public void onJoin(PlayerJoinEvent e)
    {
        e.setJoinMessage("§b"+e.getPlayer().getName()+" зашёл на сервер");
        ItemStack item = new ItemStack(Material.DIAMOND);
        ItemMeta meta = item.getItemMeta();
        meta.setDisplayName("§5Интерактивный алмаз");
        meta.setLore(config.getStringList("mes.lore"));
        item.setItemMeta(meta);
        e.getPlayer().getInventory().addItem(item);
        for(int i = 0; i < config.getInt("mes.count"); i++) {
            e.getPlayer().sendMessage(config.getString("mes.string"));
        }
    }

    @EventHandler
    public void onClick(PlayerInteractEvent e)
    {
        Action a = e.getAction();
        Player p = e.getPlayer();
        @SuppressWarnings("deprecation")
        ItemStack itemh = p.getItemInHand();
        ItemStack item = new ItemStack(Material.DIAMOND);
        ItemMeta meta = item.getItemMeta();
        meta.setDisplayName("§5Интерактивный алмаз");
        meta.setLore(Arrays.asList("§2Нажми и что-то произойдёт"));
        item.setItemMeta(meta);
        if(a != Action.RIGHT_CLICK_AIR) return;
        if(itemh.getType() !=Material.DIAMOND) return;
        if(!itemh.getItemMeta().hasDisplayName()) return;
        if(!itemh.getItemMeta().getDisplayName().equals("§5Интерактивный алмаз")) return;
        if(!itemh.getItemMeta().hasLore()) return;
        if(!itemh.getItemMeta().getLore().equals(Arrays.asList("§2Нажми и что-то произойдёт"))) return;
        p.sendMessage("Что-то произошло!");
        random(p);

    }

    @SuppressWarnings("deprecation")
    @EventHandler
    public void onblock(PlayerInteractEvent e)
    {
        Action a = e.getAction();
        Player p = e.getPlayer();
        if(a != Action.RIGHT_CLICK_BLOCK) return;
        if(p.getItemInHand().getType() == Material.AIR) return;
        if(e.getClickedBlock().getType() != Material.ENDER_CHEST) return;
        e.setCancelled(true);
        p.playSound(p.getLocation(), Sound.ENTITY_WITHER_DEATH, 1, 1);
        p.sendMessage("Нельзя");
    }

    public void random(Player p)
    {
        Random r = new Random();
        if(r.nextInt(5) <=0) return;
        switch (r.nextInt(5)) {
        case 1:
            RandomThings.jump(p);
            break;
        case 2:
            RandomThings.kick(p);
            break;
        case 3:
            RandomThings.reward(p);
            break;
        case 4:
            RandomThings.potion(p);
            break;
        case 5:
            return;
        default:
            break;
        }
    }

}