content: /**
   * This file is part of Aion-Lightning <aion-lightning.org>.
   *
   *  Aion-Lightning is free software: you can redistribute it and/or modify
   *  it under the terms of the GNU General Public License as published by
   *  the Free Software Foundation, either version 3 of the License, or
   *  (at your option) any later version.
   *
   *  Aion-Lightning is distributed in the hope that it will be useful,
   *  but WITHOUT ANY WARRANTY; without even the implied warranty of
   *  MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the
   *  GNU General Public License for more details. *
   *  You should have received a copy of the GNU General Public License
   *  along with Aion-Lightning.
   *  If not, see <http://www.gnu.org/licenses/>.
   */
  package ai.instance.dragonLordsRefuge;
  
  import java.util.ArrayList;
  import java.util.List;
  import java.util.concurrent.Future;
  
  import com.aionemu.commons.network.util.ThreadPoolManager;
  import com.aionemu.commons.utils.Rnd;
  import com.aionemu.gameserver.ai2.AI2Actions;
  import com.aionemu.gameserver.ai2.AIName;
  import com.aionemu.gameserver.ai2.AIState;
  import com.aionemu.gameserver.ai2.poll.AIAnswer;
  import com.aionemu.gameserver.ai2.poll.AIAnswers;
  import com.aionemu.gameserver.ai2.poll.AIQuestion;
  import com.aionemu.gameserver.model.EmotionType;
  import com.aionemu.gameserver.model.actions.CreatureActions;
  import com.aionemu.gameserver.model.gameobjects.player.Player;
  import com.aionemu.gameserver.network.aion.serverpackets.SM_EMOTION;
  import com.aionemu.gameserver.services.NpcShoutsService;
  import com.aionemu.gameserver.utils.MathUtil;
  import com.aionemu.gameserver.utils.PacketSendUtility;
  
  import ai.AggressiveNpcAI2;
  
  /**
   * @author Cheatkiller
   */
  @AIName("gravitycrusher")
  // 283141, 283142
  public class GravityCrusherAI2 extends AggressiveNpcAI2 {
  
  	private Future<?> skillTask;
  	private Future<?> transformTask;
  
  	@Override
  	protected void handleSpawned() {
  		super.handleSpawned();
  		transform();
  		ThreadPoolManager.getInstance().schedule(new Runnable() {
  
  			@Override
  			public void run() {
  				attackPlayer();
  			}
  		}, 2000);
  	}
  
  	private void transform() {
  		transformTask = ThreadPoolManager.getInstance().schedule(new Runnable() {
  
  			@Override
  			public void run() {
  				if (!isAlreadyDead()) {
  					if (skillTask != null) {
  						skillTask.cancel(true);
  					}
  					AI2Actions.useSkill(GravityCrusherAI2.this, 20967); // self destruct
  
  					ThreadPoolManager.getInstance().schedule(new Runnable() {
  
  						@Override
  						public void run() {
  							NpcShoutsService.getInstance().sendMsg(getOwner(), 1401554);
  							spawn(283140, getOwner().getX(), getOwner().getY(), getOwner().getZ(), getOwner().getHeading());
  							AI2Actions.deleteOwner(GravityCrusherAI2.this);
  						}
  					}, 3000);
  
  				}
  			}
  		}, 30000);
  	}
  
  	@Override
  	public void handleMoveArrived() {
  		super.handleMoveArrived();
  		skillTask = ThreadPoolManager.getInstance().scheduleAtFixedRate(new Runnable() {
  
  			@Override
  			public void run() {
  				AI2Actions.useSkill(GravityCrusherAI2.this, 20987);
  			}
  		}, 0, 4000);
  	}
  
  	private void attackPlayer() {
  		List<Player> players = new ArrayList<Player>();
  		for (Player player : getKnownList().getKnownPlayers().values()) {
  			if (!CreatureActions.isAlreadyDead(player) && MathUtil.isIn3dRange(player, getOwner(), 200)) {
  				players.add(player);
  			}
  		}
  		Player player = !players.isEmpty() ? players.get(Rnd.get(players.size())) : null;
  		getOwner().setTarget(player);
  		setStateIfNot(AIState.WALKING);
  		getOwner().setState(1);
  		getOwner().getMoveController().moveToTargetObject();
  		PacketSendUtility.broadcastPacket(getOwner(), new SM_EMOTION(getOwner(), EmotionType.START_EMOTE2, 0, getOwner().getObjectId()));
  	}
  
  	private void cancelTask() {
  		if (skillTask != null && !skillTask.isCancelled()) {
  			skillTask.cancel(true);
  		}
  		if (transformTask != null && !transformTask.isCancelled()) {
  			transformTask.cancel(true);
  		}
  	}
  
  	@Override
  	public void handleDied() {
  		super.handleDied();
  		cancelTask();
  	}
  
  	@Override
  	public void handleDespawned() {
  		super.handleDespawned();
  		cancelTask();
  	}
  
  	@Override
  	public boolean canThink() {
  		return false;
  	}
  
  	@Override
  	protected AIAnswer pollInstance(AIQuestion question) {
  		switch (question) {
  			case SHOULD_DECAY:
  				return AIAnswers.NEGATIVE;
  			case SHOULD_RESPAWN:
  				return AIAnswers.NEGATIVE;
  			case SHOULD_REWARD:
  				return AIAnswers.NEGATIVE;
  			default:
  				return null;
  		}
  	}
  }
  