MinesEvent.java

package net.sf.l2j.gameserver.custom.events.mines;

import net.sf.l2j.commons.concurrent.ThreadPool;
import net.sf.l2j.commons.lang.StringUtil;
import net.sf.l2j.gameserver.model.actor.instance.Player;
import net.sf.l2j.gameserver.network.serverpackets.NpcHtmlMessage;
import net.sf.l2j.gameserver.util.Broadcast;

import java.util.ArrayList;
import java.util.List;
import java.util.concurrent.Future;

public class MinesEvent{
    private final List<Player> _players = new ArrayList<>();

    protected Future<?> _startTask = null;
    protected int _countdown = 30;
    private mineState _state;

    //add the item to give for reward
    private final static int _rewardItemID = 0;
    //add the quantity of reward items
    private final static int _itemQuantity = 0;

    public MinesEvent(){
    }

    public enum mineState {
        STARTED,
        STOPPED,
        CLOSED
    }

    public static MinesEvent getInstance()
    {
        return MinesEvent.SingletonHolder._instance;
    }

    public void start() {
        _state = mineState.STARTED;
        _countdown = 30;
        showToAll();
        _startTask = ThreadPool.scheduleAtFixedRate(new Duration(), 1000, 1000);
    }


    public void stop() {
        if(_startTask != null) {
            _state = mineState.STOPPED;
            _startTask.cancel(true);
            _startTask = null;
            _players.clear();
        }
    }

    public void showToAll(){
        switch(_state) {
            case STARTED:
            for (Player plxr : _players) {
               Mines newMine =  MinesManager.getInstance().getMine(plxr.getObjectId());
               newMine.minesWindow(plxr);
            }
            break;
            case CLOSED:
                for (Player plxr : _players) {
                    finishWindow(plxr);
                }
            break;
        }
    }

    public void finishWindow(Player player){
        final StringBuilder sb = new StringBuilder();

        StringUtil.append(sb, "<br><br>Event is Over.");

        NpcHtmlMessage html = new NpcHtmlMessage(0);
        html.setFile("data/html/mods/Events/mines/minesMW.htm");
        html.replace("%mines%", sb.toString());
        player.sendPacket(html);
    }


    public void addPlayer(Player player) {
        Mines newMine = new Mines();
        MinesManager.getInstance().addNewMine(player,newMine,player.getObjectId());
        player.sendMessage("[Mines]: You successfully registered to the event.");
        _players.add(player);

    }

    public void removePlayer(Player player) {
        _players.remove(player);
        player.sendMessage("[Mines]: You successfully removed yourself from event.");
    }


    public void soloRewards(Player player) {
        player.getInventory().addItem("Mines Reward", _rewardItemID, _itemQuantity, player, player);
    }


    public void reset(){
        Broadcast.announceToOnlinePlayers("[Mines] Finished.", true);
        _state = mineState.CLOSED;
        showToAll();
        _players.clear();

    }

    public class Duration implements Runnable
    {
        @Override
        public void run()
        {
            if (_countdown < 0)
            {
                _startTask.cancel(true);
                _startTask = null;
            }

            switch (_countdown)
            {
                case 1200:
                case 900:
                case 600:
                case 300:
                case 240:
                case 180:
                case 120:
                case 60:
                    int tempTimer = _countdown / 60;
                    Broadcast.announceToOnlinePlayers("[Mines] Time left ["+tempTimer+"] minute(s)", true);
                    break;
                case 30:
                case 15:
                case 10:
                case  5:
                case  1:
                    Broadcast.announceToOnlinePlayers("[Mines] Time left ["+_countdown+"] second(s)", true);
                    break;
                case  0:
                        reset();
                    break;
            }

            _countdown--;
        }

    }

    public int getTotalPlayers(){
        return _players.size();
    }

    private static class SingletonHolder
    {
        protected static final MinesEvent _instance = new MinesEvent();
    }

}