JediForcePlugin

package com.func.funcplugin;

import java.util.HashMap;
import java.util.UUID;
import org.bukkit.Bukkit;
import org.bukkit.ChatColor;
import org.bukkit.Material;
import org.bukkit.entity.Player;
import org.bukkit.event.EventHandler;
import org.bukkit.event.Listener;
import org.bukkit.event.entity.EntityDamageByEntityEvent;
import org.bukkit.event.player.PlayerInteractEvent;
import org.bukkit.inventory.ItemStack;
import org.bukkit.plugin.java.JavaPlugin;


public class Main extends JavaPlugin implements Listener {

    private HashMap<UUID, Long> JediWaitForce = new HashMap<UUID, Long>();

    private int WaitingJediForce = 45;

    public void onEnable()
    {

        Bukkit.getServer().getPluginManager().registerEvents(this, this);
        System.out.println("(!) FUNC PLUGIN WAS ENABLE.");

    }

    public void onDisable()
    {
        System.out.println("(!) FUNC PLUGIN WAS DISABLE.");
    }


    public boolean useJediPowerOfLife = false;

    @EventHandler
    public void PlayerDamaged (EntityDamageByEntityEvent e)
    {
        Player p = (Player) e.getEntity();
        long secondsLeft = ((JediWaitForce.get(p.getUniqueId()) / 1000) + WaitingJediForce) - (System.currentTimeMillis() / 1000);
        if (useJediPowerOfLife && secondsLeft > 39)
        {
            float damage = (float) e.getDamage();
            int sethp = (int) damage / 4;
            p.setHealth(p.getHealth() + sethp);
            p.sendMessage(secondsLeft + "");
            e.setCancelled(true);
        } else useJediPowerOfLife = false;
    }

    @EventHandler
    public void PlayerUseJediPowerOfLife (PlayerInteractEvent e)
    {
        Player p = (Player) e.getPlayer();
        ItemStack i = (ItemStack) e.getItem();

        if (i.getType().equals(Material.ARROW))
        {
            if (JediWaitForce.containsKey(p.getUniqueId()))
            {
                long secondsLeft = ((JediWaitForce.get(p.getUniqueId()) / 1000) + WaitingJediForce) - (System.currentTimeMillis() / 1000);
                if (secondsLeft > 0)
                {
                    p.sendMessage(ChatColor.RED + "У тебя мало сил, подожди " + secondsLeft + " секунд.");
                }
            }
            else
            {
                useJediPowerOfLife = true;
                p.sendMessage(ChatColor.GREEN + "Сила течет во мне!");
                JediWaitForce.put(p.getUniqueId(), System.currentTimeMillis());
            }
        }
    }
}