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 com.aionemu.gameserver.skillengine.effect;
  
  import java.util.concurrent.ScheduledFuture;
  
  import javax.xml.bind.annotation.XmlAccessType;
  import javax.xml.bind.annotation.XmlAccessorType;
  import javax.xml.bind.annotation.XmlAttribute;
  import javax.xml.bind.annotation.XmlType;
  
  import com.aionemu.commons.utils.Rnd;
  import com.aionemu.gameserver.ai2.AIState;
  import com.aionemu.gameserver.ai2.NpcAI2;
  import com.aionemu.gameserver.ai2.event.AIEventType;
  import com.aionemu.gameserver.configs.main.GeoDataConfig;
  import com.aionemu.gameserver.controllers.observer.ActionObserver;
  import com.aionemu.gameserver.controllers.observer.ObserverType;
  import com.aionemu.gameserver.geoEngine.collision.CollisionIntention;
  import com.aionemu.gameserver.geoEngine.math.Vector3f;
  import com.aionemu.gameserver.model.gameobjects.Creature;
  import com.aionemu.gameserver.model.gameobjects.Npc;
  import com.aionemu.gameserver.model.stats.container.StatEnum;
  import com.aionemu.gameserver.network.aion.serverpackets.SM_TARGET_IMMOBILIZE;
  import com.aionemu.gameserver.skillengine.model.Effect;
  import com.aionemu.gameserver.utils.MathUtil;
  import com.aionemu.gameserver.utils.PacketSendUtility;
  import com.aionemu.gameserver.utils.PositionUtil;
  import com.aionemu.gameserver.utils.ThreadPoolManager;
  import com.aionemu.gameserver.world.geo.GeoService;
  
  /**
   * @author Sarynth
   */
  @XmlAccessorType(XmlAccessType.FIELD)
  @XmlType(name = "FearEffect")
  public class FearEffect extends EffectTemplate {
  
  	@XmlAttribute
  	protected int resistchance = 100;
  
  	@Override
  	public void applyEffect(Effect effect) {
  		effect.getEffected().getEffectController().removeHideEffects();
  		effect.addToEffectedController();
  	}
  
  	@Override
  	public void calculate(Effect effect) {
  		super.calculate(effect, StatEnum.FEAR_RESISTANCE, null);
  	}
  
  	@Override
  	public void startEffect(final Effect effect) {
  		final Creature effector = effect.getEffector();
  		final Creature effected = effect.getEffected();
  		effected.getController().cancelCurrentSkill();
  		effect.setAbnormal(AbnormalState.FEAR.getId());
  		effected.getEffectController().setAbnormal(AbnormalState.FEAR.getId());
  
  		// PacketSendUtility.broadcastPacketAndReceive(effected, new SM_TARGET_IMMOBILIZE(effected));
  		effected.getController().stopMoving();
  
  		if (effected instanceof Npc) {
  			((NpcAI2) effected.getAi2()).setStateIfNot(AIState.FEAR);
  		}
  		if (GeoDataConfig.FEAR_ENABLE) {
  			ScheduledFuture<?> fearTask = ThreadPoolManager.getInstance().scheduleAtFixedRate(new FearTask(effector, effected), 0, 1000);
  			effect.setPeriodicTask(fearTask, position);
  		}
  
  		// resistchance of fear effect to damage, if value is lower than 100, fear can be interrupted bz damage
  		// example skillId: 540 Terrible howl
  		if (resistchance < 100) {
  			ActionObserver observer = new ActionObserver(ObserverType.ATTACKED) {
  
  				@Override
  				public void attacked(Creature creature) {
  					if (Rnd.get(0, 100) > resistchance) {
  						effected.getEffectController().removeEffect(effect.getSkillId());
  					}
  				}
  			};
  			effected.getObserveController().addObserver(observer);
  			effect.setActionObserver(observer, position);
  		}
  	}
  
  	@Override
  	public void endEffect(Effect effect) {
  		effect.getEffected().getEffectController().unsetAbnormal(AbnormalState.FEAR.getId());
  
  		// for now we support only players
  		if (GeoDataConfig.FEAR_ENABLE) {
  			effect.getEffected().getMoveController().abortMove();// TODO impl stopMoving?
  		}
  		if (effect.getEffected() instanceof Npc) {
  			((NpcAI2) effect.getEffected().getAi2()).onCreatureEvent(AIEventType.ATTACK, effect.getEffector());
  		}
  		PacketSendUtility.broadcastPacketAndReceive(effect.getEffected(), new SM_TARGET_IMMOBILIZE(effect.getEffected()));
  
  		if (resistchance < 100) {
  			ActionObserver observer = effect.getActionObserver(position);
  			if (observer != null) {
  				effect.getEffected().getObserveController().removeObserver(observer);
  			}
  		}
  	}
  
  	class FearTask implements Runnable {
  
  		private Creature effector;
  		private Creature effected;
  
  		FearTask(Creature effector, Creature effected) {
  			this.effector = effector;
  			this.effected = effected;
  		}
  
  		@Override
  		public void run() {
  			if (effected.getEffectController().isUnderFear()) {
  				float x = effected.getX();
  				float y = effected.getY();
  				if (!MathUtil.isNearCoordinates(effected, effector, 40)) {
  					return;
  				}
  				byte moveAwayHeading = PositionUtil.getMoveAwayHeading(effector, effected);
  				double radian = Math.toRadians(MathUtil.convertHeadingToDegree(moveAwayHeading));
  				float maxDistance = effected.getGameStats().getMovementSpeedFloat();
  				float x1 = (float) (Math.cos(radian) * maxDistance);
  				float y1 = (float) (Math.sin(radian) * maxDistance);
  				byte intentions = (byte) (CollisionIntention.PHYSICAL.getId() | CollisionIntention.DOOR.getId());
  				Vector3f closestCollision = GeoService.getInstance().getClosestCollision(effected, x + x1, y + y1, effected.getZ(), true, intentions);
  				if (effected.isFlying()) {
  					closestCollision.setZ(effected.getZ());
  				}
  				if (effected instanceof Npc) {
  					((Npc) effected).getMoveController().resetMove();
  					((Npc) effected).getMoveController().moveToPoint(closestCollision.getX(), closestCollision.getY(), closestCollision.getZ());
  				}
  				else {
  					effected.getMoveController().setNewDirection(closestCollision.getX(), closestCollision.getY(), closestCollision.getZ(), moveAwayHeading);
  					effected.getMoveController().startMovingToDestination();
  				}
  			}
  		}
  	}
  }
  