Помогите Ошибка на PlayerInteractEvent

Добрый день, проверяю на наличие предмета в руке игрока и в зависимости от предмета произвожу действия. Ошибка вылезает если жму на какой-либо блок без предмета, либо с предметов отличным от тех на которые я проверяю.
Код:

Spoiler: Spells.java

Code:

package server.hopeworld.classes;

import java.util.logging.Logger;

import org.bukkit.Material;
import org.bukkit.entity.Fireball;
import org.bukkit.entity.Player;
import org.bukkit.event.EventHandler;
import org.bukkit.event.Listener;
import org.bukkit.event.player.PlayerInteractEvent;

public class Spells implements Listener{
    @EventHandler
    public void skills(PlayerInteractEvent e)
    {
        Player p = e.getPlayer();
        if(p.getMetadata("playerClass").get(0).asString() == "mage")
        {
            if(e.getItem().getType() == Material.BLAZE_ROD)
            {
                Fireball fire = p.getWorld().spawn(e.getPlayer().getLocation(), Fireball.class);
                fire.setShooter(p);
                Logger.getLogger("HopeWorld").info("Mage " + p.getName() + " used Fireball spell at: "+ p.getLocation().getX() + "," + p.getLocation().getY() + "," + p.getLocation().getZ());
            } else if (e.getItem().getType() == Material.TNT)
            {
                p.getWorld().createExplosion(p.getLocation().getX(), p.getLocation().getY(), p.getLocation().getZ(), 5, false, false);
                Logger.getLogger("HopeWorld").info("Mage " + p.getName() + " used Explosion spell at: "+ p.getLocation().getX() + "," + p.getLocation().getY() + "," + p.getLocation().getZ());
            }
        }
    }
}

Spoiler: Error

[20:52:50] [Server thread/ERROR]: Could not pass event PlayerInteractEvent to Classes v0.0.1
org.bukkit.event.EventException
at org.bukkit.plugin.java.JavaPluginLoader$1.execute(JavaPluginLoader.java:294) ~[craftbukkit-1.7.10.jar:git-Bukkit-1.7.9-R0.2-18-ga04b586-b3107jnks]
at org.bukkit.plugin.RegisteredListener.callEvent(RegisteredListener.java:62) ~[craftbukkit-1.7.10.jar:git-Bukkit-1.7.9-R0.2-18-ga04b586-b3107jnks]
at org.bukkit.plugin.SimplePluginManager.fireEvent(SimplePluginManager.java:501) [craftbukkit-1.7.10.jar:git-Bukkit-1.7.9-R0.2-18-ga04b586-b3107jnks]
at org.bukkit.plugin.SimplePluginManager.callEvent(SimplePluginManager.java:486) [craftbukkit-1.7.10.jar:git-Bukkit-1.7.9-R0.2-18-ga04b586-b3107jnks]
at org.bukkit.craftbukkit.v1_7_R4.event.CraftEventFactory.callPlayerInteractEvent(CraftEventFactory.java:225) [craftbukkit-1.7.10.jar:git-Bukkit-1.7.9-R0.2-18-ga04b586-b3107jnks]
at net.minecraft.server.v1_7_R4.PlayerInteractManager.interact(PlayerInteractManager.java:374) [craftbukkit-1.7.10.jar:git-Bukkit-1.7.9-R0.2-18-ga04b586-b3107jnks]
at net.minecraft.server.v1_7_R4.PlayerConnection.a(PlayerConnection.java:630) [craftbukkit-1.7.10.jar:git-Bukkit-1.7.9-R0.2-18-ga04b586-b3107jnks]
at net.minecraft.server.v1_7_R4.PacketPlayInBlockPlace.a(SourceFile:60) [craftbukkit-1.7.10.jar:git-Bukkit-1.7.9-R0.2-18-ga04b586-b3107jnks]
at net.minecraft.server.v1_7_R4.PacketPlayInBlockPlace.handle(SourceFile:9) [craftbukkit-1.7.10.jar:git-Bukkit-1.7.9-R0.2-18-ga04b586-b3107jnks]
at net.minecraft.server.v1_7_R4.NetworkManager.a(NetworkManager.java:157) [craftbukkit-1.7.10.jar:git-Bukkit-1.7.9-R0.2-18-ga04b586-b3107jnks]
at net.minecraft.server.v1_7_R4.ServerConnection.c(SourceFile:134) [craftbukkit-1.7.10.jar:git-Bukkit-1.7.9-R0.2-18-ga04b586-b3107jnks]
at net.minecraft.server.v1_7_R4.MinecraftServer.v(MinecraftServer.java:667) [craftbukkit-1.7.10.jar:git-Bukkit-1.7.9-R0.2-18-ga04b586-b3107jnks]
at net.minecraft.server.v1_7_R4.DedicatedServer.v(DedicatedServer.java:258) [craftbukkit-1.7.10.jar:git-Bukkit-1.7.9-R0.2-18-ga04b586-b3107jnks]
at net.minecraft.server.v1_7_R4.MinecraftServer.u(MinecraftServer.java:558) [craftbukkit-1.7.10.jar:git-Bukkit-1.7.9-R0.2-18-ga04b586-b3107jnks]
at net.minecraft.server.v1_7_R4.MinecraftServer.run(MinecraftServer.java:469) [craftbukkit-1.7.10.jar:git-Bukkit-1.7.9-R0.2-18-ga04b586-b3107jnks]
at net.minecraft.server.v1_7_R4.ThreadServerApplication.run(SourceFile:628) [craftbukkit-1.7.10.jar:git-Bukkit-1.7.9-R0.2-18-ga04b586-b3107jnks]
Caused by: java.lang.NullPointerException
at server.hopeworld.classes.Spells.skills(Spells.java:22) ~[?:?]
at sun.reflect.GeneratedMethodAccessor2.invoke(Unknown Source) ~[?:?]
at sun.reflect.DelegatingMethodAccessorImpl.invoke(Unknown Source) ~[?:1.7.0_60]
at java.lang.reflect.Method.invoke(Unknown Source) ~[?:1.7.0_60]
at org.bukkit.plugin.java.JavaPluginLoader$1.execute(JavaPluginLoader.java:292) ~[craftbukkit-1.7.10.jar:git-Bukkit-1.7.9-R0.2-18-ga04b586-b3107jnks]
... 15 more

Данная проблема решена
Второй вопрос тут

 

Ну так e.getItem() == null.

 

Жутко затупил, спасибо

 

p.getMetadata("playerClass").get(0).asString() == "mage"
Вот за это тебя убить мало.

 

А что тут не так?

 

Сравнение строк через ==

 

"=" - присваивание, "==" - сравнение. Разве не так?[DOUBLEPOST=1408302489,1408302438][/DOUBLEPOST]Можно конечно через .equils(). Но разве это что-то меняет?

 

== сравнивает указатели, а equals - строки.

 

Хорошо, спасибо за инфу[DOUBLEPOST=1408302732,1408302638][/DOUBLEPOST]Дабы не создавать новую тему напишу тут. Суть: Если в стаке больше одной вещи, нужно каждую секунду отнимать по одному предмету от стака. Никаких ивентов отвечающих за временной промежуток не нашел.

 

Шелудер.

 

Нагуглил только вот это http://wiki.bukkit.org/Scheduler_Programming#Repeating_Example
Сделал так:

Spoiler: Код

Code:

package server.hopeworld.classes;

import java.util.logging.Logger;

import org.bukkit.Bukkit;
import org.bukkit.Material;
import org.bukkit.entity.Fireball;
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.scheduler.BukkitScheduler;
import org.bukkit.util.Vector;

public class Spells implements Listener{
    @EventHandler
    public void skills(PlayerInteractEvent e)
    {
        final Player p = e.getPlayer();
        if(p.getMetadata("playerClass").get(0).asString().equals("mage"))
        {
            if(e.getAction() == Action.RIGHT_CLICK_AIR || e.getAction() == Action.RIGHT_CLICK_BLOCK){
            if(p.getItemInHand().getType()== null)
            {
                return;
            }
            if(p.getItemInHand().getType() == Material.BLAZE_ROD)
            {
                BukkitScheduler scheduler = Bukkit.getServer().getScheduler();
               scheduler.scheduleSyncRepeatingTask(new Main(), new Runnable() {
                   @Override
                   public void run() {
                       if (p.getItemInHand().getAmount() > 1){
                          p.getItemInHand().setAmount(p.getItemInHand().getAmount() - 1);
                   }
                  }
               }, 0L, 20L);
           }
                if(p.getItemInHand().getAmount() > 1){
                      p.sendMessage("Восстановление умение еще " + p.getItemInHand().getAmount());
                } else {
               Fireball fire = p.getWorld().spawn(e.getPlayer().getLocation().add(new Vector(0.0D, 1.0D, 0.0D)), Fireball.class);
               fire.setFireTicks(0);
               fire.setShooter(p);
               p.getItemInHand().setAmount(p.getItemInHand().getAmount() + 1);
               Logger.getLogger("HopeWorld").info("Mage " + p.getName() + " used Fireball spell at: "+ p.getLocation().getX() + "," + p.getLocation().getY() + "," + p.getLocation().getZ());
                }
            } /**else if (p.getItemInHand().getType() == Material.TNT) 
            {
               
                if(p.getItemInHand().getAmount() > 1){
                    p.sendMessage("Восстановление умение еще " + p.getItemInHand().getAmount());
                } else {
                p.getItemInHand().setAmount(60);
                p.getWorld().createExplosion(p.getLocation().getX(), p.getLocation().getY(), p.getLocation().getZ(), 5, false, false); 
                p.getItemInHand().setAmount(p.getItemInHand().getAmount() + 1);
               Logger.getLogger("HopeWorld").info("Mage " + p.getName() + " used Explosion spell at: "+ p.getLocation().getX() + "," + p.getLocation().getY() + "," + p.getLocation().getZ());
                }*/
            }
        }
    }

Но что-то идет не так и

Spoiler: Ошибка

Code:

[23:30:25] [Server thread/ERROR]: Could not pass event PlayerInteractEvent to Classes v0.0.1
org.bukkit.event.EventException
    at org.bukkit.plugin.java.JavaPluginLoader$1.execute(JavaPluginLoader.java:294) ~[craftbukkit-1.7.10.jar:git-Bukkit-1.7.9-R0.2-18-ga04b586-b3107jnks]
    at org.bukkit.plugin.RegisteredListener.callEvent(RegisteredListener.java:62) ~[craftbukkit-1.7.10.jar:git-Bukkit-1.7.9-R0.2-18-ga04b586-b3107jnks]
    at org.bukkit.plugin.SimplePluginManager.fireEvent(SimplePluginManager.java:501) [craftbukkit-1.7.10.jar:git-Bukkit-1.7.9-R0.2-18-ga04b586-b3107jnks]
    at org.bukkit.plugin.SimplePluginManager.callEvent(SimplePluginManager.java:486) [craftbukkit-1.7.10.jar:git-Bukkit-1.7.9-R0.2-18-ga04b586-b3107jnks]
    at org.bukkit.craftbukkit.v1_7_R4.event.CraftEventFactory.callPlayerInteractEvent(CraftEventFactory.java:225) [craftbukkit-1.7.10.jar:git-Bukkit-1.7.9-R0.2-18-ga04b586-b3107jnks]
    at org.bukkit.craftbukkit.v1_7_R4.event.CraftEventFactory.callPlayerInteractEvent(CraftEventFactory.java:195) [craftbukkit-1.7.10.jar:git-Bukkit-1.7.9-R0.2-18-ga04b586-b3107jnks]
    at net.minecraft.server.v1_7_R4.PlayerConnection.a(PlayerConnection.java:606) [craftbukkit-1.7.10.jar:git-Bukkit-1.7.9-R0.2-18-ga04b586-b3107jnks]
    at net.minecraft.server.v1_7_R4.PacketPlayInBlockPlace.a(SourceFile:60) [craftbukkit-1.7.10.jar:git-Bukkit-1.7.9-R0.2-18-ga04b586-b3107jnks]
    at net.minecraft.server.v1_7_R4.PacketPlayInBlockPlace.handle(SourceFile:9) [craftbukkit-1.7.10.jar:git-Bukkit-1.7.9-R0.2-18-ga04b586-b3107jnks]
    at net.minecraft.server.v1_7_R4.NetworkManager.a(NetworkManager.java:157) [craftbukkit-1.7.10.jar:git-Bukkit-1.7.9-R0.2-18-ga04b586-b3107jnks]
    at net.minecraft.server.v1_7_R4.ServerConnection.c(SourceFile:134) [craftbukkit-1.7.10.jar:git-Bukkit-1.7.9-R0.2-18-ga04b586-b3107jnks]
    at net.minecraft.server.v1_7_R4.MinecraftServer.v(MinecraftServer.java:667) [craftbukkit-1.7.10.jar:git-Bukkit-1.7.9-R0.2-18-ga04b586-b3107jnks]
    at net.minecraft.server.v1_7_R4.DedicatedServer.v(DedicatedServer.java:258) [craftbukkit-1.7.10.jar:git-Bukkit-1.7.9-R0.2-18-ga04b586-b3107jnks]
    at net.minecraft.server.v1_7_R4.MinecraftServer.u(MinecraftServer.java:558) [craftbukkit-1.7.10.jar:git-Bukkit-1.7.9-R0.2-18-ga04b586-b3107jnks]
    at net.minecraft.server.v1_7_R4.MinecraftServer.run(MinecraftServer.java:469) [craftbukkit-1.7.10.jar:git-Bukkit-1.7.9-R0.2-18-ga04b586-b3107jnks]
    at net.minecraft.server.v1_7_R4.ThreadServerApplication.run(SourceFile:628) [craftbukkit-1.7.10.jar:git-Bukkit-1.7.9-R0.2-18-ga04b586-b3107jnks]
Caused by: java.lang.IllegalArgumentException: Plugin already initialized!
    at org.bukkit.plugin.java.PluginClassLoader.initialize(PluginClassLoader.java:98) ~[craftbukkit-1.7.10.jar:git-Bukkit-1.7.9-R0.2-18-ga04b586-b3107jnks]
    at org.bukkit.plugin.java.JavaPlugin.<init>(JavaPlugin.java:66) ~[craftbukkit-1.7.10.jar:git-Bukkit-1.7.9-R0.2-18-ga04b586-b3107jnks]
    at server.hopeworld.classes.Main.<init>(Main.java:25) ~[?:?]
    at server.hopeworld.classes.Spells.skills(Spells.java:31) ~[?:?]
    at sun.reflect.NativeMethodAccessorImpl.invoke0(Native Method) ~[?:1.7.0_60]
    at sun.reflect.NativeMethodAccessorImpl.invoke(Unknown Source) ~[?:1.7.0_60]
    at sun.reflect.DelegatingMethodAccessorImpl.invoke(Unknown Source) ~[?:1.7.0_60]
    at java.lang.reflect.Method.invoke(Unknown Source) ~[?:1.7.0_60]
    at org.bukkit.plugin.java.JavaPluginLoader$1.execute(JavaPluginLoader.java:292) ~[craftbukkit-1.7.10.jar:git-Bukkit-1.7.9-R0.2-18-ga04b586-b3107jnks]
    ... 15 more
Caused by: java.lang.IllegalStateException: Initial initialization
    at org.bukkit.plugin.java.PluginClassLoader.initialize(PluginClassLoader.java:101) ~[craftbukkit-1.7.10.jar:git-Bukkit-1.7.9-R0.2-18-ga04b586-b3107jnks]
    at org.bukkit.plugin.java.JavaPlugin.<init>(JavaPlugin.java:66) ~[craftbukkit-1.7.10.jar:git-Bukkit-1.7.9-R0.2-18-ga04b586-b3107jnks]
    at server.hopeworld.classes.Main.<init>(Main.java:25) ~[?:?]
    at sun.reflect.NativeConstructorAccessorImpl.newInstance0(Native Method) ~[?:1.7.0_60]
    at sun.reflect.NativeConstructorAccessorImpl.newInstance(Unknown Source) ~[?:1.7.0_60]
    at sun.reflect.DelegatingConstructorAccessorImpl.newInstance(Unknown Source) ~[?:1.7.0_60]
    at java.lang.reflect.Constructor.newInstance(Unknown Source) ~[?:1.7.0_60]
    at java.lang.Class.newInstance(Unknown Source) ~[?:1.7.0_60]
    at org.bukkit.plugin.java.PluginClassLoader.<init>(PluginClassLoader.java:52) ~[craftbukkit-1.7.10.jar:git-Bukkit-1.7.9-R0.2-18-ga04b586-b3107jnks]
    at org.bukkit.plugin.java.JavaPluginLoader.loadPlugin(JavaPluginLoader.java:127) ~[craftbukkit-1.7.10.jar:git-Bukkit-1.7.9-R0.2-18-ga04b586-b3107jnks]
    at org.bukkit.plugin.SimplePluginManager.loadPlugin(SimplePluginManager.java:328) ~[craftbukkit-1.7.10.jar:git-Bukkit-1.7.9-R0.2-18-ga04b586-b3107jnks]
    at org.bukkit.plugin.SimplePluginManager.loadPlugins(SimplePluginManager.java:251) ~[craftbukkit-1.7.10.jar:git-Bukkit-1.7.9-R0.2-18-ga04b586-b3107jnks]
    at org.bukkit.craftbukkit.v1_7_R4.CraftServer.loadPlugins(CraftServer.java:364) ~[craftbukkit-1.7.10.jar:git-Bukkit-1.7.9-R0.2-18-ga04b586-b3107jnks]
    at org.bukkit.craftbukkit.v1_7_R4.CraftServer.<init>(CraftServer.java:326) ~[craftbukkit-1.7.10.jar:git-Bukkit-1.7.9-R0.2-18-ga04b586-b3107jnks]
    at net.minecraft.server.v1_7_R4.PlayerList.<init>(PlayerList.java:68) ~[craftbukkit-1.7.10.jar:git-Bukkit-1.7.9-R0.2-18-ga04b586-b3107jnks]
    at net.minecraft.server.v1_7_R4.DedicatedPlayerList.<init>(SourceFile:14) ~[craftbukkit-1.7.10.jar:git-Bukkit-1.7.9-R0.2-18-ga04b586-b3107jnks]
    at net.minecraft.server.v1_7_R4.DedicatedServer.init(DedicatedServer.java:133) ~[craftbukkit-1.7.10.jar:git-Bukkit-1.7.9-R0.2-18-ga04b586-b3107jnks]
    at net.minecraft.server.v1_7_R4.MinecraftServer.run(MinecraftServer.java:436) ~[craftbukkit-1.7.10.jar:git-Bukkit-1.7.9-R0.2-18-ga04b586-b3107jnks]
    ... 1 more

 

new Main() зря сделал. если надо объект класса Main, но бери тот, что уже создан.

 

Какой-то бред, решил разбить скилы по классам. Теперь все работает, но очень и очень криво. Во-первых, кол-во не уменьшается если курсор не на предмете, во-вторых, с каждым разом уменьшается все быстрее и быстрее. Я абсолютно не понимаю как это работает [DOUBLEPOST=1408308276,1408308136][/DOUBLEPOST]Прилагаю все исходнки.

Spoiler: Main.java

Code:

package server.hopeworld.classes;

import java.util.ArrayList;
import java.util.logging.Logger;

import org.bukkit.Bukkit;
import org.bukkit.ChatColor;
import org.bukkit.Material;
import org.bukkit.enchantments.Enchantment;
import org.bukkit.entity.Player;
import org.bukkit.event.EventHandler;
import org.bukkit.event.Listener;
import org.bukkit.event.block.BlockPlaceEvent;
import org.bukkit.event.inventory.InventoryClickEvent;
import org.bukkit.event.player.PlayerDropItemEvent;
import org.bukkit.event.player.PlayerJoinEvent;
import org.bukkit.event.player.PlayerQuitEvent;
import org.bukkit.inventory.Inventory;
import org.bukkit.inventory.ItemStack;
import org.bukkit.inventory.meta.ItemMeta;
import org.bukkit.metadata.FixedMetadataValue;
import org.bukkit.plugin.java.JavaPlugin;
import org.bukkit.scheduler.BukkitRunnable;

public class Main extends JavaPlugin implements Listener{
    Logger log = Logger.getLogger("HopeWorld");
    public static Inventory classChoose = Bukkit.createInventory(null, 9, "Выберите ваш класс:");
   

   
    public static void createDisplay(Material material, Inventory inv, int Slot, String name, String lore) {
        ItemStack item = new ItemStack(material);
        ItemMeta meta = item.getItemMeta();
        meta.setDisplayName(name);
        ArrayList<String> Lore = new ArrayList<String>();
        Lore.add(lore);
        meta.setLore(Lore);
        item.setItemMeta(meta);
        inv.setItem(Slot, item);
        }
    public void addCustomItem(Material material, Player player, Enchantment ench, int enchlvl, String name, String lore)
    {
        ItemStack item = new ItemStack(material);
        ItemMeta meta = item.getItemMeta();
        meta.setDisplayName(name);
        ArrayList<String> Lore = new ArrayList<String>();
        Lore.add(lore);
        meta.setLore(Lore);
        item.setItemMeta(meta);
        item.addUnsafeEnchantment(ench, enchlvl);
        player.getInventory().addItem(item);
    }
   
    static
    {
        createDisplay(Material.NETHER_STAR, classChoose, 2, "Воин", "==== \nЖизни: 35");
        createDisplay(Material.EMERALD, classChoose, 4, "Лучник", "==== \nЖизни: 25");
        createDisplay(Material.DIAMOND, classChoose, 6, "Волшебник", "==== \nЖизни: 25");
    }
   
    public void onEnable()
    {
        getConfig().options().copyDefaults(true);
        saveConfig();
        log.info("Classes has been enabled");
        getServer().getPluginManager().registerEvents(this, this);
        getServer().getPluginManager().registerEvents(new SpellFireball(), this);
        getServer().getPluginManager().registerEvents(new SpellExplosion(), this);
    }
    public void onDisable()
    {
        log.info("Classes has been disabled");
    }
   
    @EventHandler
    public void onLeave(PlayerQuitEvent e)
    {
        Player p = e.getPlayer();
        p.removeMetadata("playerClass", this);
    }
    @EventHandler
    public void BlockPlaceDeprecetion(BlockPlaceEvent e)
    {
        e.setCancelled(true);
    }
    @EventHandler
    public void DropDeprecation(PlayerDropItemEvent e)
    {
        e.setCancelled(true);
    }
    @EventHandler
    public void onPlayerFirstJoin(final PlayerJoinEvent e)
    {
        new BukkitRunnable() {
            @Override
            public void run(){
                    e.getPlayer().openInventory(classChoose);
            }
        }.runTaskLater(this, 20);
    }
    @EventHandler
    public void onInventoryClick(InventoryClickEvent event) {
        Player player = (Player) event.getWhoClicked();
        ItemStack clicked = event.getCurrentItem();
        Inventory inventory = event.getInventory();
        if (inventory.getName().equals(classChoose.getName()))
        {
            if(clicked.getType() == Material.NETHER_STAR)
            {
                event.setCancelled(true);
                player.closeInventory();
                player.sendMessage("Вы выбрали класс" + ChatColor.DARK_PURPLE +" Воин" + ChatColor.RESET + "!");
                log.info("Player " + player.getName() + " choosed classs Warrior");
                player.setMetadata("playerClass", new FixedMetadataValue(this, "warrior"));
                player.getInventory().clear();
                player.setMaxHealth(30);
                player.setHealth(35);
                this.addCustomItem(Material.DIAMOND_SWORD, player, Enchantment.DAMAGE_ALL, 1 , ChatColor.GOLD + "Меч Война", null);
                player.getInventory().addItem( new ItemStack(Material.ICE, 1));
            }
            if(clicked.getType() == Material.EMERALD)
            {
                event.setCancelled(true);
                player.closeInventory();
                player.sendMessage("Вы выбрали класс" + ChatColor.DARK_PURPLE +" Лучник" + ChatColor.RESET + "!");
                log.info("Player " + player.getName() + " choosed classs Archer");
                player.setMetadata("playerClass", new FixedMetadataValue(this, "archer"));
                player.getInventory().clear();
                player.setMaxHealth(20);
                player.getInventory().addItem(new ItemStack(Material.ARROW, 1));
                this.addCustomItem(Material.BOW, player, Enchantment.ARROW_INFINITE, 1, ChatColor.GOLD + "Прямой луук", null);
            }
            if(clicked.getType() == Material.DIAMOND)
            {
                event.setCancelled(true);
                player.closeInventory();
                player.sendMessage("Вы выбрали класс" + ChatColor.DARK_PURPLE +" Волшебник" + ChatColor.RESET + "!");
                log.info("Player " + player.getName() + " choosed classs Mage");
                player.getInventory().clear();
                player.setMetadata("playerClass", new FixedMetadataValue(this, "mage"));
                player.setMaxHealth(20);
                this.addCustomItem(Material.TNT, player, Enchantment.KNOCKBACK, 1, ChatColor.RED + "Суицид", "Создает взрыв на вашем месте");
                this.addCustomItem(Material.BLAZE_ROD, player, Enchantment.FIRE_ASPECT, 1, ChatColor.GOLD + "Посох Волшебника", "Посылает огенный шар");
                }
        }
    }

}

Spoiler: SpellFireball.java

Code:

package server.hopeworld.classes;

import java.util.logging.Logger;

import org.bukkit.Bukkit;
import org.bukkit.Material;
import org.bukkit.entity.Fireball;
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.scheduler.BukkitScheduler;
import org.bukkit.util.Vector;

public class SpellFireball implements Listener{

    @EventHandler
    public void fireball(PlayerInteractEvent e)
    {
        final Player p = e.getPlayer();
        if(p.getMetadata("playerClass").get(0).asString().equals("mage"))
        {
            if(e.getAction() == Action.RIGHT_CLICK_AIR || e.getAction() == Action.RIGHT_CLICK_BLOCK){
            if(!(p.getItemInHand().getType() == Material.BLAZE_ROD))
            {
                return;
            }
            if(p.getItemInHand().getType() == Material.BLAZE_ROD)
            {
                BukkitScheduler scheduler = Bukkit.getServer().getScheduler();
                scheduler.scheduleSyncRepeatingTask(Main.getPlugin(Main.class), new Runnable() {
                    @Override
                    public void run() {
                        if (p.getItemInHand().getAmount() > 1){
                            p.getItemInHand().setAmount(p.getItemInHand().getAmount() - 1);
                    }
                   }
                }, 0L, 20L);
            }
                if(p.getItemInHand().getAmount() > 1){
                      p.sendMessage("Восстановление умение еще " + p.getItemInHand().getAmount());
                } else {
                Fireball fire = p.getWorld().spawn(e.getPlayer().getLocation().add(new Vector(0.0D, 1.0D, 0.0D)), Fireball.class);
                fire.setFireTicks(0);
                fire.setShooter(p);
                p.getItemInHand().setAmount(p.getItemInHand().getAmount() + 20);
                Logger.getLogger("HopeWorld").info("Mage " + p.getName() + " used Fireball spell at: "+ p.getLocation().getX() + "," + p.getLocation().getY() + "," + p.getLocation().getZ());
                }
            }
        }
    }
}

Spoiler: SpellExplosion.java

Code:

package server.hopeworld.classes;

import java.util.logging.Logger;

import org.bukkit.Bukkit;
import org.bukkit.Material;
import org.bukkit.entity.Fireball;
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.scheduler.BukkitScheduler;

public class SpellExplosion implements Listener {
   
    @EventHandler
    public void skills(PlayerInteractEvent e)
    {
        final Player p = e.getPlayer();
        if(p.getMetadata("playerClass").get(0).asString().equals("mage"))
        {
            if(e.getAction() == Action.RIGHT_CLICK_AIR || e.getAction() == Action.RIGHT_CLICK_BLOCK){
            if(!(p.getItemInHand().getType() == Material.TNT))
            {
                return;
            }
            if(p.getItemInHand().getType() == Material.TNT)
            {
                BukkitScheduler scheduler = Bukkit.getServer().getScheduler();
                scheduler.scheduleSyncRepeatingTask(Main.getPlugin(Main.class), new Runnable() {
                    @Override
                    public void run() {
                        if (p.getItemInHand().getAmount() > 1){
                            p.getItemInHand().setAmount(p.getItemInHand().getAmount() - 1);
                    }
                   }
                }, 0L, 20L);
            }
                if(p.getItemInHand().getAmount() > 1){
                      p.sendMessage("Восстановление умение еще " + p.getItemInHand().getAmount());
                } else {
                    p.getWorld().createExplosion(p.getLocation().getX(), p.getLocation().getY(), p.getLocation().getZ(), 5, false, false);
                    p.getItemInHand().setAmount(p.getItemInHand().getAmount() + 60);
                    Logger.getLogger("HopeWorld").info("Mage " + p.getName() + " used Explosion spell at: "+ p.getLocation().getX() + "," + p.getLocation().getY() + "," + p.getLocation().getZ());
                }
            }
        }
    }

}

 

repeating task-и накапливаются, вот и уменьшается все быстрее и быстрее)

 

Куда мне засунуть repeating task чтобы оно выполнялось, но не накапливалось?

 

Туда, что выполняется один раз.

 

Как насчет onEnable?

 

Можно туда.

 

Вот только в onEnable никак не получить игрока